Ankle braces do prevent sprains, but how much they help depends heavily on whether you’ve sprained your ankle before. Athletes who wear braces reduce their sprain risk by roughly 64% compared to those who go without, based on a meta-analysis of over 3,500 subjects. The catch: braces work far better for people with a history of ankle sprains than for those who’ve never had one.
Why Prior Sprains Change Everything
The single biggest factor in whether an ankle brace is worth wearing is your injury history. In competitive soccer players, only 5 athletes with a previous sprain needed to wear braces to prevent one injury over a season. For players with no sprain history, that number jumped to 57. A similar pattern showed up in basketball: preventing one sprain required bracing 18 previously injured athletes versus 39 who had never sprained an ankle.
This gap exists because a sprain damages the nerve receptors in and around your ankle joint. Those receptors are responsible for telling your brain where your foot is in space, a sense called proprioception. Once that feedback loop is disrupted, your muscles respond more slowly to sudden shifts in position, and your ankle becomes less stable overall. A brace compensates for that lost stability in a direct, mechanical way. It physically restricts the range of motion that would put you in a vulnerable position.
The National Athletic Trainers’ Association recommends that athletes with a history of ankle sprains wear prophylactic ankle support (either braces or tape) during all practices and games. For first-time prevention, the evidence still favors bracing, but the benefit per person is smaller.
How Braces Actually Protect Your Ankle
There’s a common belief that braces work by improving your body’s awareness of ankle position or by helping muscles fire more quickly. Research doesn’t support that. When scientists measured muscle activation patterns with and without braces, they found no meaningful changes in how quickly or strongly the muscles around the ankle responded. Preactivation levels stayed the same regardless of whether a brace was worn.
Instead, braces protect your ankle through purely passive, mechanical means. They increase the rotational stiffness of the joint, meaning your ankle simply can’t roll as far or as fast into the positions that cause a sprain. Both lace-up and semirigid designs limit plantarflexion (pointing the foot down) and inversion (the foot rolling inward), the two motions that combine to cause the vast majority of lateral ankle sprains.
Lace-Up vs. Rigid Braces
Lace-up braces restrict more motion than rigid double-upright designs. In direct comparison, lace-up braces limited inward rolling by 8 to 10 degrees compared to 3 to 4 degrees for rigid braces. Lace-ups also restricted downward pointing of the foot by 10 to 11 degrees versus 7 to 9 degrees for rigid models. Neither style negatively affected performance on hopping or agility tasks.
Athletes overwhelmingly preferred lace-up braces. In one study, 70% of participants chose the lace-up over the rigid design, rating it higher for appearance, fit, comfort, and their confidence that it could prevent an injury. This matters practically because a brace only works if you actually wear it consistently.
One surprising finding from a large study of over 2,000 high school volleyball players complicates the picture. Soft-shell fabric braces (a category that overlaps with some lace-up styles) were associated with 2.5 times the ankle injury rate compared to wearing no brace at all. Hard-shell braces showed no difference in injury rates compared to going unbraced. The researchers couldn’t determine whether the soft braces were causing problems or whether athletes who were already injury-prone were more likely to wear them. But the finding is a reminder that not all braces offer the same level of support, and the flimsiest options may create a false sense of security.
Bracing vs. Taping
Athletic tape and braces produce roughly equivalent results in preventing sprains. Both reduce sprain rates, and studies comparing them head-to-head generally find no significant difference in protection. The practical differences come down to convenience and cost. Tape loosens during activity and needs to be reapplied, while braces maintain their support throughout a session. Tape also requires someone trained to apply it properly, and the cost adds up quickly over a season. A brace is a one-time purchase that you can put on yourself.
Athletes tend to rate tape as feeling more stable than bracing during cutting movements, but they also find it less comfortable. Bracing sits in a middle ground: not quite as snug-feeling as fresh tape, but more comfortable and far more practical for everyday use.
How Braces Compare to Balance Training
Bracing isn’t the only way to protect your ankles. Balance and proprioceptive training, exercises like single-leg stands, wobble board drills, and dynamic stability work, reduced sprain risk by about 46% in a pooled analysis of over 3,500 athletes. Bracing reduced risk by 64%. On the surface, bracing looks like the clear winner, but the picture is more nuanced.
The one small study that directly compared the two approaches found that balance training reduced sprain incidence more effectively than bracing. Athletes doing balance training had a sprain rate of 0.42 per 1,000 hours of activity, compared to 0.83 for braced athletes and 3.35 for controls. That study was too small to draw firm conclusions on its own, but it suggests that balance training addresses the underlying problem (poor neuromuscular control) rather than just compensating for it mechanically.
For people recovering from a sprain, the two approaches aren’t mutually exclusive. Functional rehabilitation that includes balance work is more effective than simple immobilization for grade I and II sprains. Wearing a brace during activity while also doing a structured rehab program gives you both the immediate mechanical protection and the long-term neuromuscular benefit.
Will Bracing Weaken Your Ankle Over Time?
This is one of the most common concerns, and the honest answer is that the research hasn’t settled it. One study found that participants with chronic ankle instability showed decreased muscle activation during rehabilitation exercises while wearing a brace. But the researchers acknowledged that their findings only reflected short-term brace application and couldn’t be generalized to long-term use. No study has demonstrated that extended brace wear causes measurable muscle atrophy or weakness in the lower leg.
The theoretical concern makes intuitive sense: if a brace does the stabilizing work, muscles might not have to work as hard and could weaken over time. But the available evidence shows that braces don’t significantly change muscle firing patterns during activity. The muscles still activate in the same way and at the same intensity. Until longer-term studies are completed, the practical takeaway is that using a brace during high-risk activities while also strengthening your ankle through targeted exercises is the safest approach.
Who Benefits Most From Wearing One
If you’ve sprained your ankle before and you play a sport involving cutting, jumping, or landing on uneven surfaces, an ankle brace is one of the most straightforward things you can do to reduce your risk of reinjury. Basketball and volleyball players are at particularly high risk, with ankle injuries accounting for 58% of all acute lower-extremity injuries in one large volleyball study. The majority of those injuries happened during jumping, landing, or pivoting on a planted foot.
If you’ve never had a sprain, bracing still offers some protection, but the benefit is much smaller. You’d likely get more value from a consistent balance training program. For first-time prevention in a recreational athlete, the cost and hassle of wearing a brace every session may not be justified by the relatively modest reduction in risk. For someone returning to sport after a sprain, though, the combination of a quality brace and a rehab program targeting ankle strength and proprioception is well supported by the evidence.