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Asian J Kinesiol > Volume 19(4); 2017 > Article
The Official Journal of the Korean Academy of Kinesiology 2017;19(4):57-63.
DOI: https://doi.org/10.15758/jkak.2017.19.4.57    Published online October 30, 2017.
Correlation Analysis of Landing Error Score and Lower Body Stiffness for Evaluating Anterior Cruciate Ligament Risk Factors in Female Soccer Players.
Bee-Oh Lim, Ji-Hoon Cho
Chung-ang University
Shingyeong University
Correspondence:  Ji-Hoon Cho,
Email: jhchopro@hanmail.net
Received: 16 August 2017   • Accepted: 19 October 2017
Abstract
PURPOSE
The purpose of this study was to investigate the correlation analysis of the variables between lower body stiffness(knee joint stiffness & leg spring stiffness) calculated by three-dimensional motion analysis system and the landing error score calculated using the landing error score system during drop vertical jump.
METHODS
Ten professional female soccer players participated in the study. Pearson's coefficient of correlation was used to determine the correlation between the landing error score and the lower body stiffness(knee joint stiffness & leg spring stiffness) during drop vertical jump on the 30cm box.
RESULTS
There was a negative correlation between the landing error score and the knee joint stiffness(r=-0.412, p<.05), and there was a high negative correlation between landing error score and leg spring stiffness(r=-0.614, p<.05).
CONCLUSIONS
The landing error score, which can be easily used in the sports field, showed a significant negative correlation with lower body stiffness, which is a risk factor of anterior cruciate ligament injury.
Keywords: female soccer player, ACL risk factor, knee joint stiffness, leg spring stiffness, landing error scoring system


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