Relationship between the countermovement vertical jump and overhead weightlifting derivatives

Date

2022-08

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Abstract

The purpose of the proposed study is to illuminate the biomechanics of three common Olympic weightlifting overhead derivatives (e.g., push press, push jerk, and split jerk) and to determine the similarities between these movements and the countermovement vertical jump (CMVJ) to conclusively determine whether the movements are similar and whether weightlifting overhead derivates should be studied in relation to improving CMVJ performance. Kinematic and kinetic data were obtained synchronously via three-dimensional motion capture analysis and two force platforms, respectively. There were no differences between the split jerk, push jerk, and push press exercises in phase-specific force, time, or rate of force development (RFD) qualities. Significant differences were found across loads for yielding time, braking force, time, and RFD, and concentric force, time, and RFD. Based on the CMVJ trials, unloading force, yielding time, yielding RFD, braking time, concentric time, and concentric force were identified as significant predictors of CMVJ height. Furthermore, concentric time and concentric force were significantly different between the CMVJ and split jerk, push jerk, and push press exercises. Lastly, there were significant differences in momentum, center of mass depth, peak knee flexion joint angles, and hip flexion joint angles between the CMVJ and split jerk, push jerk, and push press exercises. Collectively, the results of this study suggest that weightlifting overhead derivatives are similar in phase-specific force-time characteristics to the CMVJ during the unloading, yielding, and braking phases of the respective movements.

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Keywords

Weightlifting, Countermovement Vertical Jump, Split Jerk, Push Jerk, Push Press

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