Optimizing landing mechanics to modulate patellar tendon loading: An individualized moment arm analysis

iScience 2026 Open access

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Authors: Bojie Xuan, Yang Song, Dong Sun, Fengping Li, Shunxiang Gao, Qiaolin Zhang, Xuanzhen Cen, Liangliang Xiang, Zixiang Gao, Bálint Kovács, Gusztáv Fekete, Yaodong Gu
DOI: 10.1016/j.isci.2026.115541
Cited by: 3
References: 42

Abstract

kinematics to quantify the patellar tendon moment arm (PTMA) and the PPTF, examining their biomechanical correlations and neuromuscular features. Minimal sex-related PTMA differences suggest comparable anatomical leverage during knee flexion across both sexes. In both sexes, PPTF was significantly positively correlated with the knee flexion angle at initial contact (IC) and significantly negatively correlated with the knee range of motion (ROM). Muscle network analysis showed lower clustering coefficients in high-frequency versus low-frequency bands. Reduced IC knee flexion and increased ROM attenuate patellar tendon mechanical demand. By incorporating individualized moment-arm analysis, this study provides a biomechanical basis for understanding patellar tendon loading during landing.

Fields of Study & Subjects

Tendon Structure and Treatment Lower Extremity Biomechanics and Pathologies Knee injuries and reconstruction techniques

Publication details

Journal / source
iScience
Publisher
Elsevier BV
Volume
29
Issue
5
Pages
115541–115541
Publication date
31 March 2026
Language
EN