There’s no single best option for everyone. Squatting barefoot and squatting in shoes each change your mechanics in measurable ways, and the right choice depends on your ankle mobility, foot structure, and what you’re trying to get out of the movement. The short version: if you have good ankle mobility and healthy arches, barefoot or flat-soled shoes work well. If you struggle to hit depth or stay upright, a heeled shoe solves real problems.
How Shoes Change Your Squat Mechanics
The biggest mechanical difference between squatting barefoot and squatting in shoes comes down to what’s happening at your ankle. A raised heel, whether from a weightlifting shoe or a regular sneaker, shifts your center of mass forward slightly. This makes it easier to keep your torso upright and your knees tracking forward over your toes. Research published in the European Journal of Sport Science found that squatting in running shoes (which have a moderate heel) was associated with increased squat depth and greater knee flexion compared to going barefoot.
That extra knee flexion means more work for your quads. When your torso stays more vertical, the demand shifts away from your hips and lower back and toward the front of your thighs. This is why Olympic weightlifters, who need to catch a barbell in a deep overhead or front squat position, almost universally wear heeled shoes. Powerlifters, who typically use a wider stance and more hip-dominant technique, have historically preferred flat shoes like Chuck Taylors or even no shoes at all.
What Weightlifting Shoes Actually Do
Dedicated weightlifting shoes have a rigid, incompressible sole and a raised heel typically between 19mm and 22mm (roughly 0.75 to 0.86 inches). The standard heel height is 0.75 inches. That rigid platform does two things: it eliminates the energy-absorbing cushion found in running shoes, and it gives your ankle 2 to 5 degrees of effective dorsiflexion that you don’t have to produce from your own joint. If your ankles are stiff, those few degrees can be the difference between hitting parallel and not.
The stability factor is significant too. Lifters who switch from soft-soled gym shoes to weightlifting shoes often describe the difference as going from standing on a balance board to standing on concrete. A compressible sole under heavy load is genuinely unstable. If you’re squatting in running shoes, you’re working against cushioning that was designed for an entirely different purpose.
The Case for Barefoot Squatting
Squatting barefoot puts your foot in direct contact with the ground, which increases sensory feedback from the sole of your foot. Research on minimalist footwear and barefoot activity shows that conventional shoes dampen the sensory signals your feet send to your brain about balance and position. Going barefoot can sharpen that feedback loop.
There’s also a strengthening argument. Your feet contain layers of small muscles that help maintain your arch and stabilize your ankle. When you squat barefoot, these muscles have to work without the structural support of a shoe. Over time, this can build foot strength and improve your natural stability. Studies on barefoot walking show higher activation in certain deep stabilizing muscles of the lower back and foot compared to walking in conventional shoes.
In terms of raw force production, going barefoot doesn’t appear to offer a meaningful advantage. A study in the Journal of Strength and Conditioning Research compared shod and unshod deadlifting at 60% and 80% of max effort and found no significant differences in peak force or peak power output. The forces were nearly identical across conditions. So the idea that being closer to the ground helps you “push harder” doesn’t hold up in the data.
Muscle Activation Differences
EMG research comparing barefoot and shod squatting shows surprisingly small differences in how hard your muscles work. At moderate to heavy loads (60% to 80% of max), quad activation was roughly similar between barefoot and running shoe conditions. At heavier loads, there was a slight trend toward higher quad activation in shoes, but the differences weren’t dramatic.
Calf muscle activation tells a more interesting story. At lighter loads, barefoot squatting showed slightly higher calf activation during the lifting phase of the movement. As loads increased to 80% of max, that pattern reversed, with the shod condition producing higher calf activity. The practical takeaway is that neither condition produces a dramatically different training stimulus for your major muscle groups. Your squat depth, stance width, and bar position matter far more for muscle targeting than what’s on your feet.
Foot Type Matters More Than You Think
If you have flat feet or pronated arches, your footwear choice during squats has real implications. Research measuring pressure distribution across the foot found that people with pronated feet concentrate significantly more pressure on the inner forefoot as squat depth increases. At a half-squat (90 degrees of knee bend), people with flat feet showed nearly double the inner forefoot pressure compared to those with normal arches: about 105 kPa versus 61 kPa.
This happens because deeper squatting requires more ankle dorsiflexion, and in a pronated foot, that motion collapses the arch further, dumping load onto the inner forefoot. For people with this foot type, squatting barefoot into deep positions can overload structures that are already under stress. Supportive shoes or insoles that control pronation can help distribute that pressure more evenly. Researchers specifically noted that individuals with pronated feet should avoid deep squat positions beyond 90 degrees of knee flexion without some form of foot support.
Running Shoes Are the Worst Option
If there’s one clear consensus, it’s this: regular running shoes are the worst thing you can squat in. Their thick, compressible foam midsoles absorb force you’re trying to put into the ground, create an unstable surface under load, and elevate your heel just enough to change your mechanics without offering the rigid support of a proper weightlifting shoe. They give you the downsides of both worlds.
If you don’t want to invest in weightlifting shoes, flat-soled options like canvas sneakers or wrestling shoes provide a stable, firm surface without heel elevation. These are a legitimate choice for squatting, and many strong lifters have used nothing else for their entire careers.
Choosing Based on Your Goals
For high-bar squats, front squats, or Olympic lifts where you need to stay upright and go deep, a heeled weightlifting shoe is the most practical choice. The extra ankle range lets you sit lower with better posture, and the rigid sole means all your force goes into the floor.
For low-bar squats with a wide stance, where you’re deliberately using more hip drive and a forward lean, flat shoes or barefoot squatting works naturally with that movement pattern. You don’t need the extra ankle range because the mechanics don’t demand it.
For general fitness squatting with moderate loads, the most important thing is simply avoiding soft, cushioned shoes. Beyond that, your ankle mobility is the deciding factor. Try a simple test: stand with your feet shoulder-width apart and squat as deep as you can without your heels lifting. If you can get to parallel or below with your heels planted, you likely have enough ankle mobility to squat in flat shoes or barefoot. If your heels rise or your torso pitches far forward, a heeled shoe will immediately improve your position.
One practical note: many commercial gyms require closed-toe shoes for liability reasons, so barefoot squatting may not be an option depending on where you train. Minimalist shoes with thin, flat soles offer a reasonable compromise, providing the ground feel of barefoot training while keeping your feet protected.