CC BY-NC-ND 4.0 · Sports Med Int Open 2022; 6(02): E53-E59
DOI: 10.1055/a-1947-4848
Orthopedics & Biomechanics

The Ecological Validity of Countermovement Jump to On-Court Asymmetry in Basketball

1   Kinesiology, McMaster University Faculty of Science, Hamilton, Canada
,
Matthew C Ruder
1   Kinesiology, McMaster University Faculty of Science, Hamilton, Canada
,
Zaryan Masood
1   Kinesiology, McMaster University Faculty of Science, Hamilton, Canada
,
Dylan Kobsar
1   Kinesiology, McMaster University Faculty of Science, Hamilton, Canada
› Author Affiliations
Funding Information McMaster University — http://dx.doi.org/10.13039/100009776.

Abstract

Jump-based asymmetry is often used as an indicator of sport performance and may be used to discern injury susceptibility. Due to task specificity, however, countermovement jump asymmetry may not be representative of on-court asymmetry. As such, we assessed the association between countermovement jump asymmetry and on-court impact asymmetry metrics (n=3, and n=4, respectively) using linear regressions (α=0.05). Fifteen female basketball athletes completed countermovement jump and on-court sessions across a competitive season. A significant negative association was found between peak landing force asymmetry and both overall and medium acceleration on-court asymmetry (b=–0.1, R2=0.08, p<0.001; b=–0.1, R2 =0.11, p<0.001, respectively), as well as between peak propulsive force asymmetry and on-court medium acceleration asymmetry (b=–0.24, R2=0.04, p=0.01). Alternatively, both peak landing and peak propulsive force asymmetry were significantly positively associated with on-court high acceleration asymmetry (b=0.17, R2 =0.08, p<0.001; b=0.35, R2=0.02, p=0.04, respectively). While some overlap may exist, countermovement jump and on-court impact asymmetry appear to be independent. Thus, sport-specific monitoring may be necessary to adequately monitor injury susceptibility using asymmetry.



Publication History

Received: 21 June 2022

Accepted: 13 September 2022

Article published online:
04 November 2022

© 2022. The Author(s). This is an open access article published by Thieme under the terms of the Creative Commons Attribution-NonDerivative-NonCommercial-License, permitting copying and reproduction so long as the original work is given appropriate credit. Contents may not be used for commercial purposes, or adapted, remixed, transformed or built upon. (https://creativecommons.org/licenses/by-nc-nd/4.0/).

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