Differences in End Range of Motion Vertical Jump Kinetic and Kinematic Strategies Between Trained Weightlifters and Elite Short Track Speed Skaters

Journal of Strength and Conditioning Research
William B HaugEric J Drinkwater

Abstract

The purpose of this investigation was to identify differences in end range of motion (ROM) kinetic and kinematic strategies between highly resistance and vertical jump-trained athletes and controls. Weightlifters (WL: n = 4), short track speed skaters (STSS: n = 5), and nonresistance-trained controls (C: n = 6) performed 6 standing vertical squat jumps (SJ) and countermovement jumps (CMJ) without external resistance. Jump testing was performed using 3-dimensional marker trajectories captured with a 15-camera motion analysis system synchronized with 2 in-ground force plates. During SJ, there were large effects for the difference in time before toe off of peak vertical velocity between WL to STSS and C (ES: -1.43; ES: -1.73, respectively) and for the decrease between peak and toe off vertical velocity (ES: -1.28; ES: -1.71, respectively). During CMJ, there were large effects for the difference in time before toe off of peak vertical velocity between WL to STSS and C (ES: -1.28; ES: -1.53, respectively) and for decrease between peak and toe off vertical velocity (ES: -1.03; ES: -1.59, respectively). Accompanying these differences for both jump types were large effects for time of joint deceleration before toe off for all lower bod...Continue Reading

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Citations

Jan 16, 2018·Journal of Strength and Conditioning Research·Kym J WilliamsNick B Ball
Oct 16, 2018·The Journal of Sports Medicine and Physical Fitness·Kjell Hausken
Mar 17, 2018·Journal of Strength and Conditioning Research·Lachlan P JamesG Gregory Haff
Jul 6, 2021·Journal of Strength and Conditioning Research·Paulina Szyszka, Adam Czaplicki

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