INTRA- AND INTER-SUBJECT VARIABILITY IN A REALISTIC, NON-STANDARDIZED EXERGAMING SCENARIO

Authors

Michelle C. Haas, ZHAW Zurich University of Applied Sciences, SwitzerlandFollow
Anna Lisa Martin-Niedecken, Zurich University of the Arts, SwitzerlandFollow
Larissa Wild, Zurich University of the Arts, SwitzerlandFollow
Leander Schneeberger, Zurich University of the Arts, SwitzerlandFollow
Eveline S. Graf, ZHAW Zurich University of Applied Sciences, SwitzerlandFollow

Category

Injury

Document Type

Paper

Abstract

The purpose of this study was to assess the variability of lower extremity mechanics related to biomechanical risk factors for anterior cruciate ligament injury. Lower body kinematics were measured in healthy subjects in a realistic, non-standardized exergaming scenario. Variability in a jump exercise were described with the coefficient of variation and leg symmetry was assessed using Welch’s t-test. Inter-subject variability was moderate-high and intra-subject variability was low-moderate in all variables, while leg symmetry differed significantly for knee internal rotation and hip extension (p < .001), but not in the knee valgus. Athletes showing high risk knee biomechanics and high movement variability need clear instructions to prevent more extreme angles. Athletes showing low movement variability need proper recovery periods to avoid ACL fatigue failure.

Recommended Citation

Haas, Michelle C.; Martin-Niedecken, Anna Lisa; Wild, Larissa; Schneeberger, Leander; and Graf, Eveline S. (2024) "INTRA- AND INTER-SUBJECT VARIABILITY IN A REALISTIC, NON-STANDARDIZED EXERGAMING SCENARIO," ISBS Proceedings Archive: Vol. 42: Iss. 1, Article 48.
Available at: https://commons.nmu.edu/isbs/vol42/iss1/48