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Test–retest reliability of knee biomechanics during stop jump landings
Journal article   Peer reviewed

Test–retest reliability of knee biomechanics during stop jump landings

Clare E. Milner, Carolyn G. Westlake and Jeremiah J. Tate
Journal of biomechanics, v 44(9), pp 1814-1816
03 Jun 2011
DOI: https://doi.org/10.1016/j.jbiomech.2011.04.005
PMID: 21514592
Featured in Collection :   UN Sustainable Development Goals @ Drexel

Abstract

Coefficient of multiple correlation Female Jumping Kinematics Kinetics
Studies that seek to determine the effects of an intervention on knee biomechanics during landing from a jump implicitly assume that the variables of interest are reliable both within and between data collection sessions. Currently, such reliability data are not available for a stop jump. Standard three-dimensional motion analysis was used to determine sagittal and frontal plane peak angles and moments and peak vertical ground reaction force within and between sessions for a stop jump. Twelve female recreational athletes participated in two data collection sessions spaced two weeks apart. Interclass correlation coefficients and coefficient of multiple correlation were used to determine within and between session reliability of peak knee flexion angle, peak internal knee extension moment, peak knee abduction angle, peak internal knee adduction moment and peak vertical ground reaction force. Overall reliability within a session (ICC (3,1) 0.631–0.881; CMC 0.672–0.958) and between sessions (ICC (3,k) 0.685–0.959; CMC 0.598–0.944) was good. Peak angles and moments were similar between sessions. The stop jump is less reliable within a session than a drop vertical jump reported previously in the literature. This is likely due to increased intrasubject variability between trials due to the less constrained nature of the task. Reliability of the stop jump is comparable to the drop vertical jump between sessions. Reliability of knee adduction moment is lower than reported for the drop vertical jump. The results of this study support the use of a stop jump task to evaluate knee biomechanics during landing in longitudinal studies with a repeated measures design.

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29 citations in Web of Science
28 citations in Scopus

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Collaboration types
Domestic collaboration
Web of Science research areas
Biophysics
Engineering, Biomedical
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