Title: Limb biomechanical difference between bounced and alternating jumping rope

Authors: Tianle Jie; Jiao Li; Ee-Chon Teo

Addresses: Faculty of Sports Science, Ningbo University, Zhejiang, China ' Faculty of Sports Science, Ningbo University, Zhejiang, China ' Faculty of Sports Science, Ningbo University, Zhejiang, China; Department of Sport, School of Chemical and Biomedical Engineering, Nanyang Technological University, Singapore

Abstract: Jumping rope is easy to perform, providing physical benefits, but different techniques may have varying effects on the body. This study aimed to compare the biomechanical differences between alternating jumping rope (AJ) and bounced jumping rope (BJ). Twenty adolescent participants were recruited, and lower limb kinematic and kinetic data were collected using the Vicon 3D motion capture system and the AMTI 3D force platform. During the AJ, the knee joint exhibited an increased adduction angle (p < 0.05) and a higher dorsiflexion angle of the ankle joint (p < 0.05). Additionally, the AJ showed significantly larger flexion (p < 0.001), extension (p < 0.001), and abduction moments (p < 0.001) compared to the BJ. Ankle joint stiffness was significantly higher in the AJ (p < 0.05). The study results provide valuable insights into jumping rope biomechanics, with practical significance for promoting healthy activities among adolescents.

Keywords: jumping rope; adolescents; biomechanics; joint stiffness; OpenSim musculoskeletal modelling.

DOI: 10.1504/IJBET.2024.138714

International Journal of Biomedical Engineering and Technology, 2024 Vol.45 No.2, pp.150 - 163

Received: 26 Jun 2023
Accepted: 26 Jul 2023
Published online: 29 May 2024 *

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