Feser, EMacadam, PCronin, JNagahara, R2019-07-152019-07-1520182018ISBS Proceedings Archive: Vol. 36 : Iss. 1 , Article 57. Available at: https://commons.nmu.edu/isbs/vol36/iss1/57https://hdl.handle.net/10292/12663This study quantified changes in step kinematics between unloaded, thigh, and shank wearable resistance (WR) at 2% body mass (BM) during over ground sprint running. Eleven male athletes completed two maximal effort sprint trials over 52 m of in-ground force plates, for each condition. There were no significant (p > 0.05) changes in sprint times between all conditions. Compared to unloaded sprinting, shank WR significantly changed step frequency (SF) (-2.1% acceleration phase and -2.5% max velocity phase (MVP)), contact times (CT) (2.1% MVP) and flight times (3.3% MVP); thigh WR significantly changed SF (-1.4% MVP) and CT (2.9% MVP). It appears peripheral loading (2% BM) of the thigh and shank affects SF and CT but not step length and width. Such differential loading could be used to train different mechanical determinants of speed.Posting of the article on the internet as part of a non-commercial open access institutional repository or other non-commercial open access publication site affiliated with the author(s)'s place of employment.Sprinting; Velocity; Resistance; Sport-specificityConference ContributionOpenAccess