Modern people increasingly have no need to go barefoot, and the time spent barefoot grows ever shorter. The advent of high heels, running shoes, sandals, and slippers has nearly eliminated opportunities for walking barefoot.

Yet most shoes haven't solved many problems for modern people; on the contrary, certain types have actually caused more injuries.

Take bunions caused by pointed-toe high heels, or flat feet resulting from soft-soled, thick-soled shoes. In most cases, unnatural footwear designs weaken the foot's natural functions.

Yet the foot serves as the primary sensory organ of the human musculoskeletal system. It is also a vital source of proprioceptive awareness and kinesthetic perception.

Amidst today's technological advancements and specialized footwear, the trend of “high-tech shoes, low-functioning feet” should not prevail.

In truth, everyone benefits from barefoot fitness.

From marathon runner Abebe Bikila, who won gold barefoot at the 1960 Rome Olympics, to strongman Hafthor Björnsson setting a new world record by deadlifting 501 kilograms barefoot in his Reykjavik home gym, to Mr. Universe Arnold Schwarzenegger personally practicing and advocating barefoot training.

For practitioners of yoga, Pilates, kettlebells, and barbells, barefoot fitness is increasingly becoming a necessity. This stems not only from its alignment with the body's primal movement patterns but also from the sensory input it provides—including tactile feedback, proprioception, and kinesthetic awareness. Elite athletes and hardcore fitness enthusiasts have long unlocked the secrets of barefoot training.

Among all the joints in our body, 30% are located in the feet. As the foundation of our entire body's support and the basis for all movement, the feet are, in a sense, the eyes of the brain, helping it “see” the environment. Regular training of the foot muscles is crucial for ensuring bodily stability and balance.

1. More people are choosing barefoot fitness

From marathon running to kettlebell and barbell training, more individuals are opting for barefoot workouts.

For many, their first barefoot workout experience stems from “forgetting their training shoes.” Beyond the feet turning dark and dirty, the “proprioceptive feedback” during movements like squats and deadlifts is actually enhanced.

Fitness enthusiast Sean recalls a time after work when he wore dress shoes and forgot his trainers. Remembering a barefoot training video he'd seen, he simply took off his shoes and socks and performed a deadlift workout barefoot. Though feeling awkward and self-conscious about others' stares, he distinctly felt his toes spread and grip the floor during the pushing phase of the deadlift—a sensation previously unattainable while wearing shoes.

Kettlebell coach Victor Rowse also recalls that during his kettlebell certification exam, the instructor explicitly prohibited shoes. For the subsequent three days of training, we consistently trained barefoot. Surprisingly, I found barefoot training to be more comfortable and effective than wearing shoes.

Mr. Olympia Arnold Schwarzenegger has also stated that barefoot training yields superior results. He personally practiced and promoted barefoot fitness for a time.

For disciplines like yoga, Pilates, boxing, and Brazilian Jiu-Jitsu—which inherently advocate for barefoot practice—going barefoot is essential.

On one hand, yoga and Pilates emphasize bodily sensation and feedback. The feet serve as the primary sensory organs of the human movement system. Barefoot practice enhances awareness of shifts in foot pressure distribution and the generation of static friction with the ground.

On the other hand, disciplines like boxing and Brazilian Jiu-Jitsu demand acute sensitivity and rapid response to movement and positioning. This requires reliable proprioceptive feedback from the feet.

In the commercial sphere, more brands are advocating that “shoes shouldn't be fashion accessories,” urging greater public attention to foot health.

The barefoot shoe brand “vivobarefoot” launched the public health campaign “Shoespiracy,” exposing how unnatural designs—like excessively thick soles and narrow toe boxes—diminish our feet's natural function.

A study from the University of Liverpool in the UK indicates that highly structured and supportive shoes restrict sensory input from the feet and impair gait control. Over time, this leads to diminished foot strength, further affecting mobility and stability [1].

The study also compared “sagittal plane stability” and “frontal plane stability” during walking among barefoot, minimalist barefoot shoes, and traditional footwear. It found that compared to conventional footwear, both barefoot walking and minimalist barefoot shoes provided greater stability during gait.

Barefoot fitness is becoming more popular—and increasingly essential.

2. Feet are more complex than you might imagine

Three arches, 26 bones, 33 joints, and over a hundred muscles, tendons, and ligaments collectively form our feet.

For athletes and fitness enthusiasts, the importance of the foot arch cannot be overstated. The arch commonly referred to is actually composed of three distinct parts:

Medial longitudinal arch: Also known as the shock absorber. Formed by the calcaneus, talus, navicular, three cuneiform bones, and the first to third metatarsals, it lies along the inner edge of the foot. This arch features a pronounced curvature and strong elasticity, making it ideal for jumping and absorbing impact.

Lateral longitudinal arch: Also known as the stabilizer. Formed by the calcaneus, talus, and the fourth and fifth metatarsals, it lies along the outer edge of the foot. This arch has a shallow curvature and low elasticity, primarily contributing to maintaining an upright, weight-bearing posture.

Transverse arch: Also known as the propeller. Composed of the posterior portions of the metatarsals and the anterior portions of the tarsal bones. This arch stabilizes the sole of the foot and assists in propelling the body forward during walking.

Compared to the more commonly discussed longitudinal arch, the transverse arch of the foot is often overlooked.

Researchers from Yale University School of Medicine and the University of Warwick, Professors Steven Tommasini and Carolyn Eng, state: The transverse arch actually accounts for nearly half of the foot's stiffness, far exceeding the contribution of the longitudinal arch.

Yet beyond the arches, the significance of “foot shape” is seldom discussed. Generally, human foot shapes can be categorized into four types based on toe length: Egyptian, Roman, Greek, and square.

Foot shape is closely linked to shoe shape (last). Seventy percent of shoe differences lie in the forefoot section, where toe width significantly impacts comfort. This explains why modern minimalist barefoot shoes emphasize “wide lasts” and “flat soles.”

In other words, freeing toes from compression and reducing unnecessary arch support allows feet to return to a more natural state—a hallmark of healthier footwear.

Conversely, modern society's rise of high heels, pointed-toe shoes, and heavily supportive footwear is reshaping human feet. This trend may lead to increased injuries: the popularity of pointed stilettos has fueled bunions, while cushioned running shoes have paradoxically caused more lower-limb damage.

3. Liberate Your Body, Starting with Your Feet

In promoting barefoot fitness, certain footwear brands are pioneering public education initiatives.

Vibram FiveFingers sparked a trend in “barefoot walking.” With independent toes, no cushioning, and a wide, flat sole, these shoes mimic the “barefoot mode” as closely as possible.

The rise of minimalist shoes like Vibram Barefoot makes “barefoot fitness” feasible. With wide lasts and no extra support, they restore the “natural mode” of foot and lower-body movement.

In the minimalist “barefoot simulation” category, outdoor-focused brands like Merrell and Xero cater to fitness enthusiasts seeking a “return to natural function.”

Minimalist Footwear

However, functional footwear like running shoes and weightlifting shoes primarily uses external structures to compensate for bodily limitations—such as insufficient arch support or ankle mobility.

Compared to the “symptom-treating” solutions of running and weightlifting shoes, barefoot or minimalist barefoot footwear may offer a long-term “root-cause” approach.

From an evolutionary perspective, the feet are the first to sense ground temperature, surface texture, and environmental cues, relaying this information instantly to the brain via the nervous system. Just as sensitive fingers enable precise manipulation of objects, the sensitivity of the soles helps fine-tune posture and gait.

Cold begins at the feet; strength originates from the soles. Returning the feet to nature is also a path to a stronger body.