Muscle Contributions to Take-Off Velocity in the Long Jump

K Yang; WT Tang; SH Liu; MG Pandy

Journal article

Muscle Contributions to Take-Off Velocity in the Long Jump

K Yang, WT Tang, SH Liu, MG Pandy

Medicine and Science in Sports and Exercise | Published : 2023

DOI: 10.1249/MSS.0000000000003175

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Abstract

Purpose A key determinant of long jump performance is the ability to increase the vertical velocity of the center of mass (COM) while minimizing the loss in forward velocity (running speed) during the take-off phase, but exactly how this occurs is not fully understood. We combined a three-dimensional musculoskeletal model of the body with dynamic optimization theory to simulate the biomechanics of the long jump take-off and determine the contributions of the individual leg muscles to jump performance. Methods The body was modeled as a 29-degree-of-freedom skeleton actuated by a combination of muscles and net joint torques. A dynamic optimization problem was solved to reproduce full-body moti..

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University of Melbourne Researchers

Marcus Pandy Author

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Grants

Awarded by National Science and Technology Council

Funding Acknowledgements

This work was supported in part by a Discovery Projects Grant from the Australian Research Council (DP160104366) awarded to M. G. P. and the National Science and Technology Council of Taiwan (MOST 105-2410-H-179-008) awarded to W.-T. T. A Postgraduate Research Scholarship provided to K. Y. by the University of Melbourne is also gratefully acknowledged. We thank Dr. Yi-Chung Lin for his advice related to model development.