The reliability of biomechanical variables collected during single leg squat and landing tasks

Alenezi, FS; Herrington, LC; Jones, PA; Jones, R

Abstract

Introduction: The aim of this study was to determine the within- and between-day reliability of lower limb biomechanical variables collected during single leg squat (SLS) and single leg landing (SLL) tasks.

Methods: 15 recreational athletes took part in three testing sessions, two sessions on the same day and another session one week later. Kinematic and kinetic data was gathered using a ten-camera movement analysis system (Qualisys) and a force platform (AMTI) embedded into the floor.

Results: The combined averages of within-day ICC values (ICCSLS = 0.87; ICCSLL = 0.90) were higher than between-days (ICCSLS = 0.81; ICCSLL = 0.78). Vertical GRF values (ICCSLS = 0.90; ICCSLL = 0.98) were more reliable than joint angles (ICCSLS = 0.85; ICCSLL = 0.82) and moments (ICCSLS = 0.83; ICCSLL = 0.87).

Discussion: This study demonstrates that all joint angles, moments, and vertical ground reaction force (GRF) variables obtained during both tasks showed good to excellent consistency with relatively low standard error of measurement values. These findings would be of relevance to practitioners who are using such measures for screening and prospective studies of rehabilitative techniques.

Citation

Alenezi, F., Herrington, L., Jones, P., & Jones, R. (2014). The reliability of biomechanical variables collected during single leg squat and landing tasks. Journal of Electro - myography and Kinesiology, 24(5), 718-721. https://doi.org/10.1016/j.jelekin.2014.07.007

• Journal Article Type: Article
• Acceptance Date: Jul 8, 2014
• Online Publication Date: Jul 30, 2014
• Publication Date: Oct 1, 2014
• Deposit Date: Jun 11, 2015
• Journal: Journal of Electromyography & Kinesiology
• Print ISSN: 1050-6411
• Publisher: Elsevier
• Peer Reviewed: Peer Reviewed
• Volume: 24
• Issue: 5
• Pages: 718-721
• DOI: https://doi.org/10.1016/j.jelekin.2014.07.007
• Publisher URL: http://dx.doi.org/10.1016/j.jelekin.2014.07.007
• Related Public URLs: http://www.sciencedirect.com/science/journal/aip/10506411