Changes in foot pronation biomechanics from a walk to a run. Reed Ferber1,2, Patria Hume2, Sean Osis1, Blayne Hettinga1. 1University of Calgary, Calgary, AB ...
Changes in foot pronation biomechanics from a walk to a run. Reed Ferber1,2, Patria Hume2, Sean Osis1, Blayne Hettinga1 1 University of Calgary, Calgary, AB, 2Auckland University of Technology, Auckland, NZ. Footwear prescription is often based on observation and/or measurement of walking (W) gait biomechanics to serve as a surrogate for foot mechanics when running (R). However, a comprehensive understanding of changes in foot biomechanics between W and R conditions remains unclear. PURPOSE: To determine changes in kinematics during W and R conditions for select foot biomechanical variables. METHODS: Three-dimensional W and R biomechanics were analyzed on a treadmill using standard motion analysis techniques and standardized speeds (W=1.1 m/s ±5%; R=2.7m/s ±10). Kinematic data for 437 athletes (187 male; 250 female; 18-48 years) were calculated. Variables of interest included peak rearfoot eversion RFEv, peak eversion velocity (EVVel), time to peak eversion (TTPEv), eversion excursion (EVExc), footstrike angle (FSA), and foot progression angle (PFA). All variables were analyzed using paired t-tests (p
