The aim of this study was to compare the peak Vertical Ground Reaction Forces (VGRF) and Rate of Loading (ROL) between supinated, pronated, and normal feet during single leg droplanding. Thirty healthy male students from physical education & sport sciences department participated in this study and assigned to one of three groups by navicular drop test (10 per groups) [pronated (≥10mm), neutral (5-9mm), or supinated (≤4mm)]. Participants performed single leg drop-landing on the force plate from the box with height of 0.30 m. Peak VGRF and ROL were calculated using GRF data. There were significant differences in ROL between three groups (F2, 22=15.553, Wilks’ Lambda = 0.370, P≤0.05) but differences in Peak VGRF were not significant between them (F2, 22 = 2.632, P >0.05). These results suggest that supinated foot is associated with specific lower extremity kinetics. Differences in these parameters may subsequently lead to differences in injury patterns in supinated and pronated foot in athletes
