Effect of anticipation on knee kinematics during a stop-jump task
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摘要Knee stability during a functional assessment of the stop-jump task is a key factor to determine if an athlete is adequately rehabilitated after knee ligamentous injury. This study aimed to investigate knee stability due to the effect of anticipation on landing maneuvers during planned and unplanned stop-jump tasks. Knee kinematics of ten healthy male participants were collected using an optical motion analysis system during stop-jump tasks. Stop jumps were performed in four different landing positions either in planned movement or in an unplanned movement on a signal triggered as participants passed through a photocell gate. Kinematic data at the time of foot strike at landing in the stop-jump considered for investigating the anticipation effect during the stop-jump tasks. Two-way multivariate analysis of variance (MANOVA) with repeated measures and stratified paired t-tests were conducted to compare the knee kinematics data between planned and unplanned tasks. Statistical significance was set at the p < 0.05 level. External rotational angle showed a significant decrease in unplanned stop-jump tasks during forward (p < 0.05) and right (p < 0.05) jumps when compared to that of planned tasks. Flexion angle and abduction angle during forward, vertical and right jumps were significantly decreased in the unplanned tasks. Anticipation significantly influenced the landing maneuvers of stop-jump task. The results indicated that both planned and unplanned stop-jump tasks should be considered when monitoring the rehabilitation progress after a ligamentous injury. (C) 2013 Elsevier B. V. All rights reserved.
著者Fong DTP, Lam MH, Lai PK, Yung PSH, Fung KY, Chan KM
期刊名稱Gait and Posture
出版年份2014
月份1
日期1
卷號39
期次1
出版社Elsevier
頁次75 - 79
國際標準期刊號0966-6362
電子國際標準期刊號1879-2219
語言英式英語
關鍵詞Functional rehabilitation; Joint instability; Kinematics; Knee
Web of Science 學科類別Neurosciences; NEUROSCIENCES; Neurosciences & Neurology; Orthopedics; ORTHOPEDICS; Sport Sciences; SPORT SCIENCES

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