Abstract Summary
This study assessed the effects of an intrinsic foot muscle (IFM) strengthening program on biomechanical factors associated with the development of plantar fasciitis. Following an 8-week, periodized IFM strengthening protocol, rearfoot and midfoot eversion, medial longitudinal arch deformation, and plantar fascia strain all decreased. This supports the hypothesis that IFM strengthening could be an effective intervention for treatment of plantar fasciitis.