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Effect of anticipation on knee kinematics during a stop-jump task
journal contribution
posted on 2016-05-17, 08:48 authored by Daniel FongDaniel Fong, Mak-Ham Lam, Pik-Kwan Lai, Patrick Shu-Hang Yung, Kwai-Yau Fung, Kai-Ming ChanKnee 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.
Funding
This research project was made possible by equipment/resources donated by The Hong Kong Jockey Club Charities Trust.
History
School
- Sport, Exercise and Health Sciences
Published in
Gait and PostureVolume
39Issue
1Pages
75 - 79Citation
FONG, D. ... et al., 2014. Effect of anticipation on knee kinematics during a stop-jump task. Gait and Posture, 39 (1), pp.75-79.Publisher
© ElsevierVersion
- AM (Accepted Manuscript)
Publisher statement
This work is made available according to the conditions of the Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International (CC BY-NC-ND 4.0) licence. Full details of this licence are available at: https://creativecommons.org/licenses/by-nc-nd/4.0/Publication date
2014ISSN
0966-6362eISSN
1879-2219Publisher version
Language
- en