Training Foundations: Progressive Overload and Intensity Scaling

Weighted vest training is rooted in classic strength principles like progressive overload – the idea of gradually increasing resistance to spur adaptation . A weight vest simply adds extra bodyweight resistance to otherwise unweighted exercises, making “easy” movements considerably more difficult . By strapping on pounds, exercises such as push-ups, pull-ups, squats or burpees demand more effort, forcing muscles to work harder and stimulating greater strength and hypertrophy gains over time . In essence, the vest allows one to scale intensity on the fly: once high-rep bodyweight sets become too easy, a few extra pounds in the vest bring the challenge back into an optimal growth zone (e.g. turning 30 effortless push-ups into 10 tough ones) . This incremental loading is the same concept lifters use with barbells, now applied to calisthenics and cardio. Many modern weight vests accommodate small weight increments (often 1 kg or 2 lb blocks) specifically to enable safe, stepwise progression as you get stronger .

Crucially, using a vest doesn’t require altering your exercise form or routine – it intensifies the existing movement. Coaches note that a vest “distributes its weight where your center of gravity is used to moving,” making it a natural way to ramp up difficulty without awkward implements . For example, instead of doing advanced variations (like one-arm push-ups) to increase difficulty, you can perform standard push-ups with a vest, maintaining form while substantially increasing resistance . This approach is common in calisthenics training; athletes wear vests to add weight to pull-ups, dips, or muscle-up progressions once their own bodyweight no longer provides enough stimulus. It’s a direct application of overload: add weight as you get stronger to keep challenging your muscles . Over time, the body adapts by building more strength and muscle, whether the goal is pure hypertrophy (typically using a load that limits you to ~8–12 reps) or maximal strength (heavier loads for <6 reps) . The weighted vest makes it convenient to hit those targets in movements like squats, lunges, pull-ups, etc., without needing external gym equipment.

CrossFit and functional fitness programs have famously embraced weighted vest training to enhance bodyweight workouts. A prime example is the hero WOD “Murph,” which prescribes a 1-mile run, 100 pull-ups, 200 push-ups, 300 squats, and another 1-mile run – all done while wearing a 20-pound vest (the workout’s nickname “Body Armor” stems from its origin of being performed with actual tactical gear) . Adding load turns this high-rep calisthenics circuit into an extreme test of strength-endurance and mental grit. Even for elite CrossFit athletes, completing Murph with the vest is a grueling challenge, underlining how a vest can push the limits of intensity. CrossFit uses weighted vests in many such scenarios to boost the training stimulus – from vest-clad air squats in workouts, to weighted shuttle runs. In practice, the vest functions as a way to “Rx+” a workout (making the prescribed routine even harder): if an athlete can already perform, say, 40 unbroken push-ups, doing them with an extra 10–20% of bodyweight will drive new adaptation. As one CrossFit coach put it, that added “weight increase brings a new stressor on the body, and change only occurs when the body is stressed” . In short, the vest ensures the principle of “progressive overload” is satisfied even in bodyweight training, by increasing resistance in a scalable manner.

Endurance Training: Weighted Running and Rucking

Beyond strength work, weighted vests are used to amplify cardiovascular and endurance training. Runners and hikers sometimes train with vests (or backpacks) to increase the workload of their cardio sessions. By wearing a vest, “the same walk or run becomes a harder workout without changing the movement pattern” – you burn more calories and elevate your heart and breathing rate at a lower speed, since you’re moving an artificially heavier body. In fact, simply walking with a vest can noticeably boost intensity: a study commissioned by the American Council on Exercise found people burned about 12% more calories when walking while wearing a vest loaded to 15% of their bodyweight . This is a straightforward way to turn ordinary activities (like a neighborhood walk) into a calorie-torching, endurance-building exercise. Trainers note that climbing stairs or jogging “feel much more challenging when you’re 10+ pounds heavier…that’s how it’ll feel with a vest” – the effort is greater, so your body adapts by improving oxygen uptake and stamina.

In running communities, some athletes integrate vest runs sparingly to develop speed and economy. The idea is that weighted easy runs or hill climbs can increase leg strength and anaerobic capacity, making unweighted running feel easier by contrast. Research is still emerging, but there is some evidence for performance benefits: for example, one review of sprint-training studies noted wearing a vest equal to 6–19% of body mass for a few weeks did improve sprint times (though researchers call for more data) . The specificity is key – as one coach explained, “by increasing weight while walking or running, the athlete is making training as specific to their sport as possible”, essentially mimicking the heavier load of fatigue or gear during a race . Distance runners might use a vest in the off-season for short runs or hill repeats, so that when they race without it, they feel “light” on their feet. Similarly, hikers or trail runners preparing for mountain treks often carry a vest or pack in training to condition their legs for sustained climbs under load.

A particularly popular application is rucking – walking or hiking with a weighted pack or vest. This practice has military origins (soldiers long carried rucksacks on marches), but it has grown into a fitness trend for general audiences. Rucking with a vest combines low-impact cardio with strength: the load stresses your legs, core, and stabilizers more than plain walking, but without the high impact of running. Advocates like author Michael Easter point out that humans evolved to carry weight over distance (carrying food, tools, children, etc.), so rucking is a very natural form of exercise our bodies can adapt to . Groups like GORUCK have even organized rucking events and challenges, essentially bringing the military weighted-walk tradition to the masses. The philosophy here is that by reintroducing this “productive discomfort” (in Easter’s words) of carrying a load, people can develop better overall fitness and resilience while engaging in a practical activity . Many find rucking appealing because it turns a simple walk into a strength-endurance workout – ideal for those who may not enjoy gym workouts but want more intensity than normal walking. It’s also quite minimalist (just wear a vest or backpack with weight) and accessible: for instance, a beginner might start with a 10-pound vest on neighborhood walks, then gradually increase distance, pace, or load as their capacity improves .

Of course, weighted running or rucking requires caution. The added stress on joints is significant, so trainers emphasize building a base first. One should “walk before you run” – quite literally – with a vest . Seasoned coaches recommend beginning with vest walking or hiking and only progressing to slow jogging once that feels comfortable . Even then, weighted runs are typically kept short and purposeful (for example, doing just 1 mile intervals with a vest, not your entire long run) . The goal is to get a training effect without ingraining poor form. Running with excess weight can alter your gait or put extra pounding on knees/ankles, so it’s treated as an occasional overload tool, not an everyday staple for most. When used wisely, however, it can boost endurance: “respiration will be higher at lower intensities [with a vest], which can help boost endurance while reducing injury risk” – essentially because you’re working harder aerobically without having to run fast . This makes vest cardio a form of intensity scaling for the heart and lungs, analogous to how it scales muscular load in strength training.

Hypertrophy and Strength Conditioning

For athletes interested in muscle hypertrophy, weighted vests offer a bridge between high-rep bodyweight training and weighted gym exercises. High repetitions of bodyweight moves build muscular endurance but may eventually lack the tension needed for maximal growth. By adding weight, you can drop the reps into the classic muscle-building range and increase the time-under-tension per rep. For example, if a trainer can do 40 bodyweight squats continuously, they might add a vest and find they fatigue at 15–20 squats – introducing a stimulus for strength and size gains. As Gravity Fitness experts summarize, “progressive overload is the foundation…add more weight as you get stronger to build muscle”, and weight vests are a great tool to start overloading in calisthenics because you can scale the weight accordingly . Unlike holding dumbbells (which might shift your mechanics), a vest keeps the load close to your torso, so movements remain biomechanically similar to the unweighted version . This means you can effectively turn bodyweight exercises into weighted strength exercises with minimal technique changes. Over time, this approach can yield improvements in maximal strength too – e.g. weighted pull-ups translate to stronger unweighted pull-ups and even help in achieving advanced power moves like muscle-ups or explosive plyometrics . In fact, weight vest training is sometimes dubbed “hypergravity training” in sports science, evoking the idea of athletes training under higher gravitational pull so that they become more powerful when back under normal conditions .

To maximize hypertrophy or strength from vest training, programming still matters: one should manipulate sets, reps, and rest just as in traditional weightlifting. A common technique is drop sets in calisthenics – for instance, doing as many pull-ups as possible with a vest, then removing it to immediately continue with bodyweight reps . This exhausts a muscle group first under heavy load, then allows additional volume once the weight is removed, leading to a deep fatigue of muscle fibers. Weight vests make such techniques easy to implement (just unclasp and drop the vest when you can’t do any more weighted reps). They’re also used in plyometric and agility drills: coaches have athletes wear a light vest for exercises like box jumps, bounding, or sprint drills to develop more power. According to Jeff Godin, a Spartan SGX coach, “adding resistance to bodyweight exercises promotes strength, adding it to plyometric exercises promotes power, and adding it to sprints improves stride length and speed” . In other words, depending on how it’s applied, a vest can target different adaptations – it’s not just for slow strength movements. The underlying result is that over time you make greater gains than you would carrying just your own body weight , because you’ve consistently challenged the body with more than it’s accustomed to. This philosophy – never letting the body acclimate to complacency – is at the heart of weighted vest training.

Tactical and Athletic Applications of Weight Vests

Military, Law Enforcement, and Tactical Training

Military personnel incorporate weighted vests to simulate the heavy gear they carry. In this 2014 photo, a U.S. Marine performs pull-ups with a vest on – a training method used to build functional strength under combat load . The practice of training “heavier than you fight” builds confidence and capability when the gear comes off.

It’s no surprise that weighted vests have their origins in tactical professions. In fact, modern fitness vests are directly inspired by military and police body armor and load-bearing gear. Soldiers, Marines, and special operators have long worn heavy kit – body armor plates, rucksacks, ammo and tools – as part of their job, so their training evolved to include carrying those loads to build mission-ready strength and endurance. According to Jeff Godin, Ph.D., “in tactical training, where weighted vests got their start, these heavy accessories helped service members simulate carrying heavy gear or loads, as might be necessary in the field or in combat” . By practicing physical tasks (running, obstacle courses, calisthenics, etc.) with a loaded vest or pack, military personnel prepare their bodies for the stresses of real operations. This concept has spread from the armed forces and law enforcement into the wider fitness world , but it’s still a staple in those professions. For example, many military units require ruck marches: marching a certain distance with a loaded pack (commonly 40–60 lbs). This develops not only aerobic endurance but also mental toughness and foot/leg resilience. Similarly, law enforcement tactical teams (SWAT) often train in full gear or weighted vests to mimic the weight of ballistic vests and equipment they’ll wear during missions. The underlying philosophy is “train as you fight” – if you might have to run, climb, or fight with 20–50 extra pounds of gear on, then it’s wise to condition that way so you’re not surprised by the physical strain in real life.

Concrete examples abound. In U.S. Marine fitness tests, there are now weighted vest pull-up challenges used in some units – e.g. doing pull-ups with a 20- to 25-pound vest to approximate the load of body armor and gear . Firefighting academies use weight vests for a similar reason: the Candidate Physical Ability Test for firefighters includes a stair-climb event where the trainee wears a 75-pound vest (to simulate ~50 lbs of protective gear plus a 25 lb hose pack) while stepping on a stair machine for 3 minutes . This tests cardiovascular endurance and leg strength under the kind of load a firefighter would have when rushing up stairs in an emergency. If a candidate hasn’t prepared for that added weight, the test is extremely taxing – thus many fire recruits practice with weighted vests during training to adapt their balance, core strength, and stamina to the on-the-job reality . In law enforcement, some academies or special unit selections include vest runs or obstacle courses to ensure officers can handle pursuits or maneuvers with their duty gear on. The military has even formalized vest usage in some fitness events; for instance, certain special forces assessments require running or doing pull-ups wearing a 20kg (~44 lb) vest, reflecting an operational load. All these examples underscore how tactical athletes integrate weighted implements to build functional fitness – it’s not about muscle glamour, but about performing when encumbered by equipment. A weight vest is simply a convenient stand-in for the real gear.

Another aspect is mental conditioning. Carrying heavy loads in training is notoriously uncomfortable – it causes fatigue, sweat, sometimes pain – but military and police trainers often emphasize that this builds mental resilience. Rucking for miles or doing calisthenics with a vest trains service members to “embrace the suck,” a military slang meaning to accept and push through discomfort. Over time, a soldier who routinely runs a 5K with a 30 lb vest will find running the same distance in uniform (perhaps 10–15 lb of gear) relatively easy by comparison. This over-distance/over-weight training approach has been used in elite forces: e.g. Navy SEAL candidates in BUD/S routinely perform beach runs with logs or boats on their shoulders, far exceeding any weight they’d carry in actual missions – forging extreme grit. A weighted vest is a more modest tool towards the same end. It’s telling that weighted vest workouts have been incorporated into some law enforcement and military fitness tests only recently – reflecting the understanding that traditional push-ups and running alone aren’t enough; candidates must demonstrate capacity under load. By training with added weight, tactical professionals gain not just strength but confidence that they can execute their duties even with the burden of armor, ammo, or rescue equipment.

Obstacle Course Racing and Extreme Endurance

The use of weight vests has also permeated endurance sports and obstacle course racing communities, where the line between physical and mental challenge is intentionally blurred. Events like the Spartan Race, Tough Mudder, and GORUCK Challenges encourage participants to face barriers that often involve carrying weight or pushing through exhaustion. It’s common to see Spartan racers training with weighted vests or packs, especially for the longer races (Spartan Beast or Ultra) that include heavy carry obstacles (sandbags, buckets of gravel, etc.). The founder of Spartan Race, Joe De Sena, is a huge proponent of developing “functional discomfort” – doing things like hiking mountains with logs, flipping tires, and yes, wearing a weight vest on your trail runs. His philosophy, which permeates the Spartan community, is that overcoming self-imposed hardship leads to growth (more on that in the Lifestyle section). Weighted vest runs or hikes are a convenient way for obstacle course athletes to build the kind of stamina needed for surprise challenges on the course. For example, during a Spartan race you might have to carry a 60 lb sandbag up a hill; an athlete who has done hill sprints in training with a 20–30 lb vest is both physically and mentally prepared for that task. As one might say, “train heavy so the event feels light.”

The GORUCK community takes this to the next level. GORUCK events (inspired by special forces training) are essentially team-based ruck marches often spanning 12+ hours, overnight, with each participant lugging a weighted pack (usually 20–30 lbs minimum) while performing various physical and team challenges. Here the weighted vest or ruck is the central element of the sport – it’s a test of who can endure carrying weight over long distances and time, just like soldiers on a mission. Notably, what’s now a fitness trend is really nothing new: “this ‘new’ hack is as old as the military tradition of rucking: carrying weight over distance”, as one rucking guide points out . The current popularity of weighted vest walking/jogging on social media is essentially civilian fitness catching up to what armies have done for centuries. Endurance athletes in ultramarathons or adventure races have also adopted weighted training as part of their regimen. Some ultrarunners, for instance, will do occasional long runs with a pack to simulate fatigue or to strengthen their legs (especially if their race will involve a pack or required gear).

Furthermore, certain extreme races or challenges explicitly incorporate weight. One example is some ultra-distance triathlons or charity challenges where competitors wear weight vests for the duration (there have been instances of marathon or even 100-mile runs done with weight vests by particularly tough competitors, often to raise the stakes for charity fundraising). These are exceptional cases, but they highlight a shared mindset with the tactical world: carrying extra weight is a straightforward (if painful) way to ratchet up difficulty. In obstacle course races like Spartan, while the general rule for open competitors is not to wear a vest, there are special endurance events (Hurricane Heat, Spartan Agoge, etc.) where participants might be required to bring a pack or weight as part of the challenge. The tactical athlete subculture (which includes folks in military, police, firefighting, but also crossovers like CrossFitters who do “Hero WODs”) treats the weighted vest almost as a badge of honor – a tool to test one’s mettle. Completing the Memorial Day Murph workout with the prescribed 20 lb vest, for instance, is considered a significant achievement in the CrossFit community, honoring the fallen soldier Lt. Murphy by suffering through the workout as he did (he called it “Body Armor” for doing it with his armor on) .

In summary, from special ops training grounds to Spartan Race courses, weighted vests symbolize readiness for anything. They build the kind of rugged, load-bearing endurance that these athletic and tactical endeavors demand. Athletes in these domains often talk about the vest in almost philosophical terms – it’s not just physical weight, but a form of “stress inoculation.” If you can lug a vest up a mountain or through mud pits in training, then when race day or duty calls and you face adversity (be it a steep hill or a rescue carry), you’ve already been hardened for it. This overlap of physical preparation and mental fortitude is where the philosophy of the weight vest truly shines in athletic applications.

Lifestyle and Psychological Perspectives

Not only confined to workouts, the weighted vest has also become a lifestyle and psychological training tool for some enthusiasts. The idea here moves beyond sets and reps – it’s about wearing extra weight for extended periods as a form of voluntary discomfort to build discipline, resilience, and even gratitude in daily life. Proponents of this practice view the weight vest as a constant reminder and teacher: by literally carrying a burden all day, you condition your mind and body to handle stress and appreciate ease.

One illustrative example is blogger and photographer Eric Kim, who famously adopted a practice of wearing a 60-pound vest all day, every day as he goes about his routine. He straps it on each morning as a kind of ritual, even just for walking around town or doing errands. Kim jokes that after enough time “you even forget that you’re wearing it – and as a consequence, your whole body will strengthen in a good way” . In his experience, the constant load forced him into better posture and made every step require effort, effectively turning the world into his gym. He likens it to training in high gravity: “after wearing it enough…you even forget you’re wearing it, making every walk a workout,” and when he removes it, he feels like he’s light as a feather . This approach aligns with the notion of “earned comfort.” If you spend your day weighted down, simply taking off the vest feels like a reward – you tangibly experience the difference between discomfort and comfort. By deliberately denying himself ease (carrying 60 lb everywhere is no small feat), Kim “earns” the relaxation when it comes. It’s a modern riff on ancient Stoic practices of voluntary hardship. Stoic philosophers like Seneca would advise occasionally sleeping on the floor or wearing coarse clothes to remind oneself how little one truly needs and to fortify against adversity. In today’s world, choosing to wear an inconvenient weight vest during daily life serves a similar philosophical purpose: it’s “training” for the mind as much as the body.

The psychological toughness gained from this can be profound. Those who advocate for periodic or extended weighted vest wear often say it makes them more resilient and mentally sharp. You get comfortable being uncomfortable. David Goggins, the Navy SEAL turned ultra-endurance icon, captures this ethos well: “Do something that sucks every day.” He preaches that only by seeking pain and discomfort voluntarily can you callous your mind against the suffering life will throw at you . While Goggins doesn’t specifically focus on weight vests alone (he does all kinds of insane challenges), the principle is the same – if running 5 miles is hard, try it with a vest to make it suck even more, thereby expanding your capacity. This mentality of embracing discomfort is echoed by many fitness and self-improvement leaders. Spartan Race’s Joe De Sena frequently says “comfort kills growth” and urges people to “manufacture adversity” daily, whether by taking cold showers, doing burpees, or wearing a weight vest on a hike. The underlying philosophy is that daily discomfort acts as a growth trigger: it builds discipline like a muscle, and over time, your baseline for hardship moves higher. A weight vest is a tangible, physical form of self-imposed discomfort – you literally carry a burden that makes everything you do a bit harder than it needs to be.

Some take on the vest as a form of minimalist or Spartan living. By relying on a simple, rugged tool to enhance their daily life, they reject the luxury of always taking the path of least resistance. Eric Kim called his vest “my new stoic Spartan body armor” and embraced it as part of his identity – a symbol that he is committed to a harder, but more rewarding, way of life . He notes funny side effects: improved confidence and an imposing presence (since the weight forced him to stand tall, he appeared more muscular and people on the street noticeably reacted to him differently) . For him, the vest isn’t just an exercise tool, it’s character training. In his writing, he ties it to a rejection of complacency: each morning he puts on the vest like a knight dons armor, signaling that he’s ready to do battle with his day’s challenges rather than lounge in comfort . This narrative may sound extreme, but it resonates with a subset of people who find modern life too soft and seek out ways to toughen themselves.

The “earned comfort” idea also implies a greater appreciation for the simple things. If you’ve walked around for hours with 60 extra pounds, taking off the vest feels amazing – you’ve earned that comfort by enduring discomfort first. This can translate psychologically to gratitude and perspective. Small problems might not faze you as much after choosing a harder path for training. It’s a kind of hormesis: subjecting yourself to stress in controlled ways to become stronger. People who wear a vest regularly often report that when they take it off and relax, they experience a rush of relief and even pride – it’s a positive reinforcement loop that they overcame something difficult willingly. In a way, the vest becomes a mental anchor: you feel its weight constantly, reminding you that you are doing something challenging by choice. When life throws unrelated stresses at you, you might handle them better because, comparatively, you’ve done harder things to yourself.

From a lifestyle standpoint, there are also some practical benefits noted. Wearing a modest weight vest during daily activities can increase overall daily calorie burn (useful for those trying to lose weight or maintain high activity levels). In one experiment, adults with BMI in the obese range wore an 11% body-weight vest for 8 hours a day over three weeks and saw greater fat loss than a control group with a very light vest – though some participants reported aches from the experience . The concept of Non-Exercise Activity Thermogenesis (NEAT) – the calories you burn in everyday movements – can be amplified by a weight vest. Even standing at your desk or doing housework with a vest on makes your body work a bit harder. Some have used this as a weight control strategy (with careful supervision). Others point out potential posture benefits: as Kim experienced, a vest can act like a physical therapy reminder to engage your core and not slouch, since slouching with 60 lbs on is uncomfortable so you naturally align your spine. That said, these lifestyle uses have to be balanced with safety (one must listen to their body to avoid overuse, and gradually build up wearing time and weight).

In summary, the psychology behind lifestyle weighted vest use is about deliberately stepping out of comfort to build a tougher mind and body. It’s about making daily life slightly harder than it needs to be, under the belief (and indeed, experience of many) that this yields growth. Whether it’s a form of modern stoicism, a way to “earn your comfort,” or a method to stay fit without dedicated exercise sessions, the weight vest embodies the mantra that “easy lives make weak people, but challenging yourself makes you stronger.” By bearing a physical burden each day, individuals find they become not only physically stronger but also more disciplined, confident, and resilient in the face of life’s other challenges.

Influential Figures and Thought Leaders in Weighted Vest Training

Given its dual role as a fitness tool and a symbol of resilience, it’s no surprise that certain athletes and thought leaders have championed the weighted vest in their training or philosophy:

  • David Goggins – “Embrace the Suck” Advocate:** Perhaps the most famous modern icon of self-imposed hardship, Goggins (a former Navy SEAL and ultra-endurance athlete) often speaks about the value of suffering to callous the mind. While he’s known for ultra-marathons and high-rep calisthenics, he has incorporated weighted work as well – for instance, doing pull-ups with a weight vest or ruck runs as part of his brutal regimens . Goggins’ signature quote, “Do something that sucks every day,” perfectly encapsulates why someone might don a weight vest outside of their comfort. He believes that voluntarily seeking pain inoculates you against fear and weakness. This mindset has inspired countless people to add challenges like weighted vest hikes to their daily routine as a way of following Goggins’ advice. His extreme example (such as doing thousands of pull-ups or running 100 miles in a single attempt) sets the tone – while most won’t replicate those feats, wearing a 20 lb vest on a run or during a workout can be your way of doing something hard. Goggins has essentially become a thought leader in mental toughness through physical suffering, and the weight vest is one accessible tool to practice that. As he bluntly puts it, “Your comfort zone is your cage.” Getting out of it – via a weight vest or otherwise – is the key to growth .
  • Joe De Sena – Spartan Race Founder: Joe De Sena’s entire Spartan movement is built on the ethos of gritty, ancestral toughness. He often trains carrying kettlebells or wearing a 5.11 tactical weight vest, and he has spoken in interviews about doing chores or taking meetings while wearing a vest or backpack to keep himself uncomfortable. De Sena frequently reminds people that “comfort is killing us” – our modern sedentary, easy lives lead to fragility. To counteract that, he suggests “manufacturing adversity” daily. Weighted vest training fits neatly into his philosophy; in fact, Spartan Race’s official training articles advise how to safely integrate weighted vests once you have a solid base . De Sena himself sometimes does extreme stunts (like 24-hour bike rides or 100-burpee sets) and has mentioned that simply wearing a weight vest during daily tasks is an easy way to add adversity. Under his influence, the Spartan community sees the weight vest as a tool for what he calls “holistic resilience” – not just getting stronger, but training the mind to stay strong when things get hard. He even partnered with extreme endurance athlete Michael Easter (author of The Comfort Crisis) on podcasts to talk about rucking and weighted carries as simple, effective means to toughen up .
  • Michael Easter – Author of The Comfort Crisis: Easter has arguably done more to bring weighted walking (“rucking”) into mainstream fitness conversation than anyone in recent years. In his best-selling book The Comfort Crisis, he explores how modern comforts have made us unhealthy and unhappy, and he prescribes reconnecting with discomfort through activities like extended wilderness hikes and ruck marches. Easter points out that humans are “born to carry” weight – throughout history carrying heavy loads was routine, and our bodies actually respond well to it . He cites scientific studies and even prehistoric anthropology to back the benefits of weighted locomotion. Alongside neuroscientist Andrew Huberman, Easter has popularized the idea that rucking with a weighted vest can improve everything from cardiovascular health to psychological well-being by providing that missing strain and effort that our ancestors had in daily life . He often tells people to start by just adding a little weight to their daily walks (even 5-10% of bodyweight) and then gradually increase, highlighting improvements in calorie burn and even some evidence of fat loss and bone density maintenance in research . Easter’s work essentially provides the scientific and philosophical validation for weight vest practices – framing it not as a weird fitness fad, but as a return to a natural, healthy state of carrying load. His influence has led many middle-aged and older adults, in particular, to take up weighted walking as a simple exercise with outsized benefits.
  • CrossFit Athletes and Coaches: In the CrossFit world, using weighted vests is fairly commonplace, and top athletes have further cemented that trend. Champions like Mat Fraser and Tia-Clair Toomey have completed Murph (and other workouts) with the prescribed vests during the CrossFit Games, bringing huge visibility to weighted vest training. When spectators saw even these fittest-on-earth individuals struggling, it underscored how much a vest can escalate intensity. Moreover, coaches in CrossFit have integrated vests into training to prepare athletes for competitions – not only for Murph, but for any bodyweight-heavy events or to increase the challenge of monostructural work (like a vest run or rope climbs with a vest). A notable CrossFit figure, Rich Froning, has been known to do hill sprints and sled drags with a vest on his own farm, exemplifying that even off-season, he uses the tool to add difficulty. Their collective example has filtered down so that in many CrossFit boxes, doing occasional workouts “vested” is a respected way to push yourself. CrossFit’s endorsement (even if implicit) of weighted vests for functional fitness has made the practice more popular in general fitness as well. Now you see recreational gym-goers doing pull-ups with a vest or members of the community doing weekly vested runs – following the lead of these elite athletes who demonstrated the benefits.
  • Tactical Fitness Trainers (Stew Smith, Mark Divine, etc.): There’s a cadre of former military members who became fitness writers or coaches, and many of them advocate weighted vest training. Stew Smith, a former Navy SEAL, writes for Military.com and often includes weight vest progressions in his programs (for example, adding a vest to pull-ups and push-ups to prepare for spec-ops fitness tests) . He likes 20–25 lb vests for pull-ups as it closely simulates combat load and is safer than holding a heavier weight between the legs . Mark Divine, another ex-SEAL who founded SEALFit, incorporates “Murph” style workouts and rucking into his training camps to forge mental toughness in candidates; wearing a weight vest in long grinder PT sessions is part of the grind. These individuals often speak about the “mind-body connection” – how carrying heavy weight in a fatigued state teaches mental control, focus on breathing, and finding calm under stress. They’re influential especially among those preparing for military or first responder careers, showing that if you want to excel in those fields, you should get used to moving with weight. Their training philosophies emphasize functional strength and durability, with the vest being a key tool. As a result, it’s become common wisdom in tactical fitness circles that you should practice things like weighted runs, stair climbs, and calisthenics with a vest to be truly prepared for service.
  • Online Personalities and YouTubers: The rise of social media has given a platform to fitness enthusiasts who often experiment with unconventional training. The Bioneer (Adam Sinicki) is one such personality who has explicitly made content about “training like Goku” from Dragon Ball Z, i.e., using weighted clothing to get stronger and faster. He reviewed hypergravity training research and tried wearing weight clothing in daily life and during workouts . Sinicki found that a weight vest can indeed improve explosive power (like jump height or sprint acceleration) by conditioning the body to produce more force – essentially agreeing with the concept that removing the vest after training makes you feel faster . His influence, along with a general pop culture fascination (many remember Goku training in 100x gravity), has drawn anime and superhero fans into trying weighted clothing as a fun, albeit challenging, way to train. Another example is The Iron Wolf, a US Marine and YouTuber known for marathon sessions of calisthenics (hundreds of burpees, squats, etc.). He often dons a 20 lb weight vest during these high-rep workouts to up the stakes. His message is about discipline and consistency; by showing up day after day knocking out colossal reps with the vest, he inspires his followers to push their own limits (maybe today you do 50 burpees with a vest when yesterday you could only do it without). These online figures have cultivated communities that see the weight vest as part of their identity – symbolizing a no-excuses, warrior mindset in training.

Together, these figures – from hardcore military vets to internet fitness geeks – have integrated weighted vests into their training or philosophy as a means to an end: that end being greater human performance and resilience. They each exemplify in their own way the core idea that by carrying extra weight in training or life, you become stronger physically and mentally. The weight vest, therefore, is more than just a piece of equipment in their narratives; it’s a deliberate commitment to self-improvement. Whether it’s Goggins pushing someone to do that miserable weighted run, or Easter explaining the evolutionary logic of rucking, or a CrossFitter throwing on a vest to honor a hero in a workout – the convergence is clear. The philosophy is “if it challenges you, it changes you,” and a weight vest is a straightforward way to add challenge.

Pros, Cons, and Potential Risks of Weighted Vest Use

Pros and Benefits: On the upside, incorporating a weighted vest into training or daily life can yield a host of benefits when done intelligently:

  • Greater Strength and Muscle Gain: By increasing the resistance on your muscles during bodyweight exercises, a vest promotes strength gains and can help build muscle mass. It essentially turns calisthenics into weighted exercises, stimulating muscle fibers that wouldn’t be taxed with bodyweight alone . Over time, this can improve maximal strength (e.g. if you can do pull-ups with 40 extra lbs, doing one with just bodyweight will be much easier) and hypertrophy in the targeted muscles, especially if you use rep ranges conducive to growth (6–15 reps). The vest is an easy way to progressively overload movements by small increments – adding say 2–5 lbs at a time – which is key for continual muscle development .
  • Improved Endurance and Cardiovascular Fitness: Wearing a weight vest makes any aerobic activity more challenging. Your heart and lungs must work harder to move a heavier body, so over time this can increase VO2 max and cardiovascular capacity. For example, weighted walking or running elevates your heart rate more than the same pace unweighted, providing a tougher cardio stimulus. One coach noted that even low-intensity runs become more effective at building endurance with a vest, because respiration and effort are higher at a given pace . Some evidence suggests training with a vest can improve running economy or speed once the vest is removed – it’s akin to altitude training or resistance sprinting in that you’re overloading the system.
  • Bone Density and Connective Tissue Strength: Load-bearing exercise is known to encourage bone mineral density maintenance or improvements, as well as strengthen tendons and ligaments. Weighted vests provide axial loading (weight through the spine, hips, knees) similar to carrying groceries or wearing a heavy backpack. Studies on post-menopausal women and others have found that programs including weighted vest exercise helped slow bone loss in the hip and spine . While results are mixed, there is a plausible benefit to using a vest for bone health, especially for those who can’t lift traditional weights. It essentially turns daily activity into a weight-bearing exercise which could be valuable for osteoporosis prevention. Similarly, gradually introducing a vest can toughen up connective tissues – your Achilles tendons, knee ligaments, etc. adapt to the increased force (provided it’s increased gradually). This might translate into more resilient joints if done properly.
  • Higher Caloric Expenditure: If weight loss or weight maintenance is a goal, a weighted vest can modestly boost your calorie burn. As mentioned, an ACE-sponsored study showed a ~12% increase in calories burned just by walking with 15% of one’s bodyweight added . Another research project where people wore vests for extended daily hours found additional fat loss in the heavier vest group . Essentially, carrying extra mass means you burn more energy doing the same activities – your body has to work harder even at rest (supporting the weight) and certainly during movement. This can make ordinary activities more effective for fat loss; for instance, doing household chores or walking the dog with a vest on becomes a mild workout. It’s a way of increasing the intensity of NEAT (non-exercise activity) and workouts without increasing time. Do note though, diet is still king for weight loss – the vest is just a tool to burn a few more calories and potentially preserve muscle by providing resistance.
  • Functional and Sport-Specific Performance: Training with a vest can have direct carryover to activities where you’ll be moving with extra load. Hikers, backpackers, and soldiers obviously benefit from practicing under load. Athletes in sports like basketball or soccer sometimes use vest jumps or sprints to develop power and speed that translate to jumping higher or running faster once unweighted (the slight improvement in explosive performance is often attributed to neural adaptations from hypergravity training) . For martial artists or obstacle racers, the vest can increase agility and strength-endurance such that when competing without it, they feel more agile. In essence, the vest is a form of specific overload that can make actual competition equipment or conditions feel easier. Even for everyday functional fitness, wearing a vest while doing tasks can make lifting groceries, climbing stairs, or playing with your kids feel easier when you’re not wearing it – you’ve raised your functional baseline.
  • Convenience and Minimalism: A perhaps underrated pro is that weight vests are quite convenient and versatile. With one piece of equipment you can train your whole body anywhere – no need for a fully stocked gym. The vest doesn’t take up much space and can replace a lot of heavier equipment for some people. This appeals to minimalists or those who like to exercise outdoors. You can do push-ups, squats, pull-ups on a tree branch, run around the block, all with the vest to add resistance, turning the world into your gym. It’s also easily adjustable (most vests allow you to add or remove small weight blocks or plates), so you can fine-tune the load for different exercises or progressive training . For example, you might use 30 lbs for squats but drop to 10–15 lbs for push-ups to maintain good form. This flexibility makes the vest a one-stop tool for a variety of training modalities – strength, endurance, rehab (weighted balance training), etc.
  • Mental Toughness and Confidence: Lastly, as elaborated earlier, there are psychological pros. Consistently training or living with a bit of extra hardship (like a weight vest) can increase your mental toughness. You learn to push through discomfort and develop a confidence from knowing you’re doing something challenging. This “mental callus” can help in athletic contexts (e.g., running the last mile of a race feels easier if you’ve done it with a vest in training) and in daily life. Some people report an almost meditative effect of wearing a vest – it constantly reminds you of the effort, keeping you present and focused. And of course, when you hit a new milestone (like hiking a trail with a 40 lb pack that used to exhaust you with 20 lb), it boosts self-efficacy. That empowerment – realizing you are literally stronger and can carry a bigger burden – can positively affect mindset.

Cons and Risks: On the flip side, using a weighted vest improperly or in excess carries potential downsides. Key risks and cons include:

  • Joint and Impact Stress: The most cited concern with weighted vests is the extra stress on the joints – ankles, knees, hips, and also the spine. Every additional pound increases the force your joints must handle, especially during high-impact activities. For example, running already places multiple times bodyweight in force through the legs with each stride; add 10% bodyweight and you significantly up those forces, potentially accelerating joint wear and tear or provoking pain . An expert from University of Florida noted, “the risk, of course, is you’re also putting that load on the joints,” and performing thousands of steps weighted can lead to overuse injuries . Common injuries from misuse include knee tendinitis, plantar fasciitis, back strain, or stress fractures, particularly if one jumps or runs on hard surfaces with too heavy a vest. Essentially, a weighted vest can wreak havoc on your knees if you overdo high-impact work (as one Reddit user bluntly put it) . This is why progression and using appropriate loads is critical; ignoring that is a major con – the vest can hurt you if you’re not careful.
  • Technical/Form Breakdowns: Maintaining proper form with extra weight can be challenging. If your posture or technique is off to begin with, a vest will magnify those flaws and potentially lead to injury. Trainers warn that “if you don’t have good mechanics…and you add weight, you’re basically expediting the injury process” . For example, if someone’s knees collapse inward on bodyweight squats, doing squats with a vest will put even more harmful pressure on the knees. Or if a runner has poor running form, a vest might cause them to lean or hunch unnaturally, straining the back. This is why many coaches advise ensuring you can do a certain number of quality bodyweight reps (push-ups, squats, etc.) before introducing a vest . The vest should never be so heavy that it forces you to change how you move – if it does, that weight is too high. A subtle form issue is also balance: a vest shifts your center of mass slightly. On exercises like pull-ups or push-ups, that usually isn’t a big deal, but for dynamic movements it can affect coordination. Some people might start running with shorter, shuffling strides to compensate for weight, which could ingrain bad habits. Therefore, the need to constantly monitor and maintain form is a bit of a “cost” of vest training – it demands mindfulness and sometimes reducing weight to keep alignment correct .
  • Overtraining and Recovery Issues: A weighted vest can turn even easy activities into exercise, which is a double-edged sword. The downside is that if you wear it too much or at the wrong times, you might undermine your recovery and overload your system. Coaches caution not to wear a vest on recovery days or all the time without rest . For instance, an easy aerobic recovery run should not be done with a vest – because then it’s not easy anymore, and you’re not actually recovering. Similarly, if you wear a vest for many hours daily, you might find your legs are perpetually fatigued, which can degrade performance in your actual high-intensity workouts. The vest adds to your overall training load, so it must be accounted for. Doing too much too soon – e.g., suddenly wearing a 50 lb vest for every exercise – can lead to symptoms of overtraining or acute injury. Users have to be especially careful about shin splints, knee pain, or back pain as early signs they’re overdoing it. The general rule “start low, go slow” applies ; ignoring that can quickly lead to burnout or injury. Thus, one con is that a vest requires intelligent programming – you can’t just slap it on anytime and assume more is better.
  • Not Suitable for Everyone: Weighted vests are not a one-size-fits-all solution. People with certain conditions or at certain fitness levels may face more risk than benefit. For example, those with pre-existing joint issues (arthritis in knees or degenerative disc in back) could aggravate their condition with added load. Individuals who are obese or very overweight already have a high load on their joints; adding even more via a vest could be dangerous – indeed, a vest essentially simulates being even heavier, which for someone already struggling with weight can predispose to injury . Also, anyone with cardiovascular or respiratory issues (like COPD or heart disease) should be cautious – the vest makes your heart/lungs work harder, which might be unsafe without medical guidance . The UF expert Benjamin Gordon pointed out that those with poor joint health, metabolic disease, or osteoarthritis likely should avoid the trend altogether . Pregnant women and people with balance or neurological issues would likely fall into “not recommended” as well due to fall risk and undue strain. So, a con is that weighted vests have a more limited appropriate audience than, say, walking unweighted – they simply aren’t wise for some populations.
  • Discomfort and Practical Limitations: Wearing a vest, especially a heavily loaded or poorly fitted one, can be uncomfortable. It can chafe the shoulders or torso, restrict breathing if strapped too tight, or cause heat buildup (many vests are like wearing a mini coat, which can get very sweaty). This discomfort is sometimes the goal, but it can also be a deterrent to using the vest regularly. For instance, some people get bruising or pressure points from where the vest sits, or they find the weight on the chest makes it hard to breathe deeply during exertion. High-quality vests try to distribute weight and have padding, but inevitably a heavy vest will be somewhat cumbersome. Additionally, a vest can alter your center of gravity and make certain movements more awkward – e.g., bending over to tie your shoes or doing a twisting motion might feel strange with weight plates on your chest and back. If one is not careful, this could even cause a stumble or fall in everyday settings (imagine losing balance on stairs because you’re not used to the load). So there’s a risk of acute injury like trips or falls if one wears the vest in an uncontrolled environment. Also, wearing a vest all day might lead to excessive fatigue; anecdotal reports mention that while initially energizing, constant wear beyond a point can leave one very tired or with muscle soreness that doesn’t fully recover by the next day. Thus, moderation is key.
  • Potential for Spinal Compression and Postural Issues: If a vest is excessively heavy or used improperly, it could contribute to compression in the spine or a forward-leaning posture. The spine can typically handle axial loads (we do have gravity all the time after all), but heavy weights compress the intervertebral discs. Over time or with a sudden too-heavy load, this might cause back pain or nerve issues. An ill-fitting vest that sags might pull on the shoulders and cause upper back/neck strain. Users must ensure the vest fits snugly and weight is evenly distributed; otherwise, you could end up lopsided or slouched. Some chiropractors and doctors have warned that weighted vests can be harmful if someone already has poor posture or weak core stabilizers – the added weight might exacerbate a lumbar lordosis or thoracic kyphosis (exaggerated spine curves). So, one should build core strength in parallel and pay attention to spinal alignment when using a vest. This is a con to consider, although for healthy individuals a moderate vest is usually fine, heavy loads should be approached like you would a barbell squat – with respect and proper bracing.

Mitigating Risks: To enjoy the pros and minimize the cons, experts offer several guidelines. Start with a light weight – many suggest ~5–10% of your bodyweight as an initial vest load . Ensure you have good form in exercises before loading them. Use the vest for short bouts at first (for instance, wear it for a portion of your workout or a half-mile of a walk, then take it off) and gradually extend as your body adapts . Focus on listening to your body: any joint pain or sharp discomfort is a sign to back off immediately . And incorporate regular deload periods – days or weeks with no vest – so your body can recover fully. Also, adjust the distribution of weight if possible: many vests allow front/back plate adjustments or adding weight symmetrically. An evenly balanced vest with weight close to the body’s center will feel more natural and reduce injury risk compared to a poorly balanced load. Finally, avoid using the vest for every workout; treat it like a spice to use occasionally to spice up training, not the main course daily (unless you’re specifically experimenting with lifestyle use, in which case still build up time gradually). With these precautions, one can reap the rewards of weighted vest training – increased strength, endurance, and toughness – while staying safe.

In conclusion, the weighted vest represents much more than added pounds; it encapsulates a training philosophy that spans physical and mental domains. It’s about deliberately increasing resistance – in exercise and in life – to stimulate adaptation and growth. From a training foundation of progressive overload and intensity scaling, the vest has proven its value in enhancing bodyweight workouts, from CrossFit boxes to calisthenics parks. In tactical and athletic arenas, it stands as a surrogate for real-world loads, forging functional strength and durability for soldiers, police, firefighters, and gritty obstacle racers alike. On a lifestyle and psychological level, carrying a weight vest can become a daily discipline, a tangible reminder to embrace discomfort and earn your comfort, echoing wisdom from ancient stoics to modern fitness gurus. Influential figures have rallied around this idea – urging us to put on the weight (literally) if we want to shed the weakness.

Ultimately, the philosophy of the weighted vest is one of earned strength: by bearing a little extra burden now, we become capable of handling greater challenges down the road. It teaches that comfort, while pleasant, is not where growth happens. Whether you’re adding a few pounds to your pull-ups or trudging up a hill with a hefty vest at dawn, the mindset is the same – do the hard thing today so you’re tougher tomorrow. As with any powerful tool, one must use it wisely, respecting the balance between stress and recovery. When used appropriately, the weight vest can be a catalyst for transformation, making you stronger in body, more resilient in mind, and prepared to face the world’s obstacles with a bit more armor. In strapping on that vest, you’re not just adding weight – you’re forging will.