Barefoot & Minimalist Footwear Research

This systematic review and meta-analysis of 28 randomized controlled trials (1,399 total participants) evaluated the effects of both foot core exercises and minimalist footwear on foot muscle sizes, foot strength, and biomechanics during dynamic tasks. The researchers performed 17 meta-analyses from studies identified across PubMed, Embase, Cochrane Library, and SPORTDiscus through March 2024.

For minimalist shoes, the meta-analysis found greater strength of toes 2 to 5 (SMD 0.02 to 0.76). Foot exercises produced lower medial longitudinal arch motion during running (CI 0.08 to 0.82). Both interventions occasionally modified walking and running biomechanical variables, suggesting meaningful functional changes from either approach.

However, evidence regarding muscle size changes was conflicting across studies, and overall evidence certainty was rated low to very low due to limited available studies and high risk of bias. The authors concluded that both foot exercises and minimalist shoes may be appropriate strategies for increasing foot strength and inducing beneficial biomechanical changes, but called for higher-quality research to strengthen confidence in these findings.

This randomized controlled trial examined the effects of a 4-week minimalist shoe walking program on foot posture and balance in healthy young adults. Participants were randomly assigned to wear either minimalist shoes or conventional shoes for daily walking over the intervention period.

The minimalist shoe group showed significant improvements in balance performance and measurable changes in foot posture, with arches shifting toward a more neutral position. These changes suggest that reduced shoe cushioning and support encourages greater proprioceptive feedback and intrinsic foot muscle activation during walking.

The findings add to growing evidence that minimalist footwear can positively influence foot biomechanics in relatively short timeframes. The balance improvements are particularly relevant, as better balance is associated with reduced fall risk and improved athletic performance. The study supports the idea that conventional cushioned shoes may limit natural foot function and proprioceptive development.

This systematic review assessed the effectiveness of minimalist shoes as an intervention for increasing plantar intrinsic foot muscle size and strength. The authors searched PubMed, CINAHL, Scopus, and SPORTDiscus for studies published between January 2000 and March 2022 that used minimalist shoe interventions lasting at least 2 weeks with control groups.

Nine studies met the inclusion criteria. Results showed consistent improvements across all measured parameters. Foot muscle strength increased between 9% and 57% depending on the specific muscles and measurement methods. Muscle size, measured by volume, cross-sectional area, or thickness, increased between 7.05% and 10.6%.

The authors concluded that minimalist shoes may effectively increase intrinsic foot muscle size and strength in healthy individuals. They highlighted that minimalist shoes may also be more convenient than implementing time-intensive physical therapy programs, as they allow strengthening to occur passively during daily activities. Future research exploring minimalist shoes in clinical populations and improving intrinsic foot muscle assessment methods was recommended.

This narrative review examines the biomechanical differences between barefoot/minimalist running and conventional shod running, with a focus on injury prevention implications. The authors synthesize evidence on how footwear influences gait mechanics, ground reaction forces, and injury patterns.

The review finds that barefoot and minimalist running naturally encourages a forefoot or midfoot strike pattern, shorter stride length, and higher cadence. These biomechanical changes reduce vertical impact loading rates — a factor strongly associated with common running injuries like tibial stress fractures and plantar fasciitis. However, the shift also increases loading on the calf muscles and Achilles tendon, which can cause injuries if the transition is too abrupt.

The authors emphasize that a gradual transition protocol is critical for safely adopting barefoot or minimalist running. They recommend progressively increasing minimalist mileage over 8-12 weeks while maintaining some conventional shoe use. The review concludes that minimalist footwear can be a valuable tool for injury prevention when adopted properly, but is not a one-size-fits-all solution — individual biomechanics and injury history should guide footwear choices.

This randomized controlled trial investigated whether transitioning to minimalist shoes for daily walking could strengthen intrinsic foot muscles. Participants were randomly assigned to either a minimalist shoe group or a conventional shoe control group for 8 weeks.

Using MRI to measure foot muscle cross-sectional area and functional tests to assess foot strength, the researchers found that the minimalist shoe group experienced significant increases in intrinsic foot muscle size and strength compared to controls. The gains were comparable to those seen with targeted foot exercise programs.

The study provides strong evidence that simply switching to minimalist footwear for everyday walking — without any additional foot exercises — is sufficient to produce meaningful gains in foot muscle strength. This has practical implications for foot health, as stronger intrinsic foot muscles are associated with better arch support and reduced injury risk.

This systematic review compared the biomechanics of barefoot versus shod walking, analyzing differences in kinematics (movement patterns), kinetics (forces), and muscle activity. The review included 22 studies comparing various footwear conditions.

Barefoot walking consistently demonstrated shorter stride length, higher cadence, reduced heel strike angle, and greater activation of intrinsic foot muscles. These changes appear to be adaptations that reduce impact forces and enhance proprioceptive feedback. The findings suggest footwear fundamentally alters natural gait patterns.

This systematic review examined whether running barefoot or in minimalist shoes reduces injuries and improves running economy compared to traditional shod running. The authors searched MEDLINE, SPORTDiscus, and CINAHL databases through September 2013 and analyzed 23 articles using the Downs and Black quality assessment checklist.

The review found moderate evidence for several biomechanical differences when running barefoot versus in shoes: lower maximum vertical ground reaction forces, reduced extension moment and power absorption at the knee, less dorsiflexion at contact, shorter ground contact time, and increased knee flexion at ground contact. These biomechanical shifts suggest a pattern of reduced impact loading and altered joint mechanics.

However, study quality scores ranged from only 13-19 out of 27 points, reflecting evidence quality ranging from very limited to moderate. The authors concluded that no definitive conclusions can be drawn about specific risks or benefits of barefoot, shod, or minimalist running due to the lack of high-quality evidence. They called for more rigorous, prospective research to clarify long-term injury and performance outcomes.

This landmark Nature study by Daniel Lieberman and colleagues compared running biomechanics between habitually barefoot and shod populations in the US and Kenya. The study examined foot strike patterns and impact forces.

Habitually barefoot runners predominantly used forefoot or midfoot strikes, generating impact forces approximately 3x lower than the heel strike pattern typical of shod runners. Interestingly, when barefoot runners put on shoes, many maintained their forefoot strike, while shod runners who removed shoes still heel-struck initially. This suggests foot strike pattern is learned and can be modified with practice.