Citation

Dos'Santos T, McBurnie A, Donelon T, Thomas C, Comfort P, Jones PA. Phys. Ther. Sport 2019; 38: 152-161.

Affiliation

Human Performance Laboratory, Directorate of Sport, Exercise, and Physiotherapy, University of Salford, Greater Manchester, United Kingdom.

Copyright

(Copyright © 2019, Elsevier Publishing)

DOI

10.1016/j.ptsp.2019.05.004

PMID

31153108

Abstract

OBJECTIVE: To assess the validity of the cutting movement assessment score (CMAS) to estimate the magnitude of peak knee abduction moments (KAM) against three-dimensional (3D) motion analysis, while comparing whole-body kinetics and kinematics between subjects of low (bottom 33%) and high CMASs (top 33%).

DESIGN: Cross-sectional study. SETTING: Laboratory. PARTICIPANTS: Forty-one participants (soccer, rugby, netball, and cricket). MAIN OUTCOME MEASURES: Association between peak KAM and CMAS during a 90° cut. Comparison of 3D whole-body kinetics and kinematics between subjects with low (bottom 33%) and high CMASs (top 33%).

RESULTS: A very large significant relationship (ρ = 0.796, p < 0.001) between CMAS and peak KAM was observed. Subjects with higher CMASs displayed higher-risk cutting postures, including greater peak knee abduction angles, internal foot progression angles, and lateral foot plant distances (p ≤ 0.032, effect size = 0.83-1.64). Additionally, greater cutting multiplanar knee joint loads (knee flexion, internal rotation, and abduction moments) were demonstrated by subjects with higher CMASs compared to lower (p ≤ 0.047, effect size = 0.77-2.24).

CONCLUSION: The CMAS is a valid qualitative screening tool for evaluating cutting movement quality and is therefore a potential method to identify athletes who generate high KAMs and "high-risk" side-step cutting mechanics.

Copyright © 2019 Elsevier Ltd. All rights reserved.

Language: en

Keywords

Anterior cruciate ligament; Injury screening; Injury-risk profile; Knee abduction moment