Publication: Altered peak knee valgus during jump-landing among various directions in basketball and volleyball athletes
Issued Date
2013-01-01
Resource Type
ISSN
20087209
2008000X
2008000X
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2-s2.0-84883473358
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Mahidol University
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SCOPUS
Bibliographic Citation
Asian Journal of Sports Medicine. Vol.4, No.3 (2013), 195-200
Suggested Citation
Komsak Sinsurin, Roongtiwa Vachalathiti, Wattana Jalayondeja, Weerawat Limroongreungrat Altered peak knee valgus during jump-landing among various directions in basketball and volleyball athletes. Asian Journal of Sports Medicine. Vol.4, No.3 (2013), 195-200. doi:10.5812/asjsm.34258 Retrieved from: https://repository.li.mahidol.ac.th/handle/20.500.14594/32583
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Title
Altered peak knee valgus during jump-landing among various directions in basketball and volleyball athletes
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Abstract
Purpose: Excessive knee valgus during landing tasks is a contributing factor to knee injuries. Most studies have examined lower extremity biomechanics during the forward direction of a jump-landing task. Athletes perform many movements in the air and land in multi-directions. Therefore, the purpose of this study was to assess the peak knee valgus angle (PKVA) during one leg jump-landing in various directions. Methods: Eighteen male basketball and volleyball athletes participated in the study. Participants performed one leg jump-landing tests from a 30 cm height platform in four directions. Knee valgus motion was measured using Vicon™ motion system. The data were analyzed with repeated measures ANOVA. Results: Direction significantly (P<0.001) influenced the PKVA during landing. Significantly higher PKVA was observed for the lateral (8.8°±4.7°) direction as compared to forward (5.8°±4.6°) direction (P<0.05). The PKVA in 30° diagonal (7.5°±4.6°) and 60° diagonal (7.7°±5.7°) directions was higher than in the forward direction (P<0.05). Conclusion: One leg jump-landing in lateral and diagonal directions results in a higher PKVA compared to landing in a forward direction and could lead to a higher risk of knee injury. © 2013 by Sports Medicine Research Center, Tehran University of Medical Sciences, All rights reserved.