PURPOSE This study investigated how resistance training affects foot pressure during gait in older women with knee osteoarthritis. METHODS A total of 10 older women with knee osteoarthritis underwent a four-week resistance exercise intervention, and their step length, anterior–posterior center of pressure (COP) displacement, and foot pressure were measured before and after the intervention. Step length and anterior–posterior COP displacement data underwent paired t-tests, while time-series foot pressure data of the rearfoot, midfoot, and forefoot during the stance phase underwent paired t-tests based on statistical nonparametric mapping (SnPM). RESULTS After the intervention, a significant increase in step length (P = .020) and anterior–posterior COP displacement (P = .001) was observed. SnPM showed increased rearfoot pressure during early to mid-stance (6%–29%), increased midfoot pressure during mid- to terminal stance (20%–57%), and increased forefoot pressure during terminal stance to preswing (74%–89%). CONCLUSIONS Resistance exercise training improved altered foot pressure during gait in older women with knee osteoarthritis.
