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Differences and correlations in knee and hip mechanics during single-leg landing, single-leg squat, double-leg landing, and double-leg squat tasks.
Res Sports Med 2015; 23(4):394-411RS

Abstract

Landing and squat tasks have been utilized to assess lower extremity biomechanics associated with anterior cruciate ligament loading and injury risks. The purpose of this study was to identify the differences and correlations in knee and hip mechanics during a single-leg landing, a single-leg squat, a double-leg landing, and a double-leg squat. Seventeen male and 17 female recreational athletes performed landings and squats when kinematic and kinetic data were collected. ANOVAs showed significant differences (p < 0.00001) for maximum knee flexion angles, maximum hip flexion angles, maximum knee abduction angles, maximum hip adduction angles, and maximum external knee abduction moments among squats and landings. For maximum knee and hip flexion angles, significant correlations (r ≥ 0.5, p ≤ 0.003) were observed between the two landings and between the two squats. For maximum knee abduction and hip adduction angles and maximum external knee abduction moments, significant correlations were mostly found between the two landings, and between the single-leg squat and landings (r ≥ 0.54, p ≤ 0.001). Individuals are likely to demonstrate different profiles of injury risks when screened using different tasks. While a double-leg landing should be considered as a priority in screening, a single-leg squat may be used as a surrogate to assess frontal plane motion and loading.

Authors+Show Affiliations

a Division of Kinesiology and Health , University of Wyoming , Laramie , WY 82071 , USA.a Division of Kinesiology and Health , University of Wyoming , Laramie , WY 82071 , USA.a Division of Kinesiology and Health , University of Wyoming , Laramie , WY 82071 , USA.a Division of Kinesiology and Health , University of Wyoming , Laramie , WY 82071 , USA.a Division of Kinesiology and Health , University of Wyoming , Laramie , WY 82071 , USA.a Division of Kinesiology and Health , University of Wyoming , Laramie , WY 82071 , USA.

Pub Type(s)

Journal Article
Research Support, Non-U.S. Gov't

Language

eng

PubMed ID

26275102

Citation

Donohue, Michael R., et al. "Differences and Correlations in Knee and Hip Mechanics During Single-leg Landing, Single-leg Squat, Double-leg Landing, and Double-leg Squat Tasks." Research in Sports Medicine (Print), vol. 23, no. 4, 2015, pp. 394-411.
Donohue MR, Ellis SM, Heinbaugh EM, et al. Differences and correlations in knee and hip mechanics during single-leg landing, single-leg squat, double-leg landing, and double-leg squat tasks. Res Sports Med. 2015;23(4):394-411.
Donohue, M. R., Ellis, S. M., Heinbaugh, E. M., Stephenson, M. L., Zhu, Q., & Dai, B. (2015). Differences and correlations in knee and hip mechanics during single-leg landing, single-leg squat, double-leg landing, and double-leg squat tasks. Research in Sports Medicine (Print), 23(4), pp. 394-411. doi:10.1080/15438627.2015.1076413.
Donohue MR, et al. Differences and Correlations in Knee and Hip Mechanics During Single-leg Landing, Single-leg Squat, Double-leg Landing, and Double-leg Squat Tasks. Res Sports Med. 2015;23(4):394-411. PubMed PMID: 26275102.
* Article titles in AMA citation format should be in sentence-case
TY - JOUR T1 - Differences and correlations in knee and hip mechanics during single-leg landing, single-leg squat, double-leg landing, and double-leg squat tasks. AU - Donohue,Michael R, AU - Ellis,Samantha M, AU - Heinbaugh,Erika M, AU - Stephenson,Mitchell L, AU - Zhu,Qin, AU - Dai,Boyi, Y1 - 2015/08/14/ PY - 2015/8/15/entrez PY - 2015/8/15/pubmed PY - 2016/9/30/medline KW - ACL injuries KW - biomechanics KW - kinematics KW - kinetics SP - 394 EP - 411 JF - Research in sports medicine (Print) JO - Res Sports Med VL - 23 IS - 4 N2 - Landing and squat tasks have been utilized to assess lower extremity biomechanics associated with anterior cruciate ligament loading and injury risks. The purpose of this study was to identify the differences and correlations in knee and hip mechanics during a single-leg landing, a single-leg squat, a double-leg landing, and a double-leg squat. Seventeen male and 17 female recreational athletes performed landings and squats when kinematic and kinetic data were collected. ANOVAs showed significant differences (p < 0.00001) for maximum knee flexion angles, maximum hip flexion angles, maximum knee abduction angles, maximum hip adduction angles, and maximum external knee abduction moments among squats and landings. For maximum knee and hip flexion angles, significant correlations (r ≥ 0.5, p ≤ 0.003) were observed between the two landings and between the two squats. For maximum knee abduction and hip adduction angles and maximum external knee abduction moments, significant correlations were mostly found between the two landings, and between the single-leg squat and landings (r ≥ 0.54, p ≤ 0.001). Individuals are likely to demonstrate different profiles of injury risks when screened using different tasks. While a double-leg landing should be considered as a priority in screening, a single-leg squat may be used as a surrogate to assess frontal plane motion and loading. SN - 1543-8635 UR - https://www.unboundmedicine.com/medline/citation/26275102/Differences_and_correlations_in_knee_and_hip_mechanics_during_single_leg_landing_single_leg_squat_double_leg_landing_and_double_leg_squat_tasks_ L2 - http://www.tandfonline.com/doi/full/10.1080/15438627.2015.1076413 DB - PRIME DP - Unbound Medicine ER -