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Lower Limb Landing Biomechanics in Subjects with Chronic Ankle Instability

De Ridder, R and Willems, T and Vanrenterghem, J and Robinson, MA and Roosen, P (2015) Lower Limb Landing Biomechanics in Subjects with Chronic Ankle Instability. MEDICINE AND SCIENCE IN SPORTS AND EXERCISE, 47 (6). pp. 1225-1231. ISSN 0195-9131

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Abstract

Literature on lower limb kinematic deviations in subjects with chronic ankle instability (CAI) during landing tasks is limited and not consistent. Several studies only report joint angles at defined events rather than considering the whole kinematic curve which might obscure possibly relevant information. Therefore, the main goal of this study was to evaluate landing kinematics of the lower limb in subjects with CAI using curve analysis. Methods: Lower limb kinematics of 56 subjects (28 subjects with self-reported CAI and 28 matched healthy controls) were measured during a barefoot forward and side jump protocol. Kinematic data were collected in a laboratory setting using an eight-camera optoelectronic system. Ground reaction forces were registered by means of a force plate built into the landing zone. After completion of each task, difficulty level and subjective stability at the ankle joint were documented using a visual analogue scale. To compare between groups, Statistical Parametric Mapping was used to assess group differences between mean joint angles over the entire impact phase. Results: SPM analysis of kinematical curves of the hip, knee, and ankle showed no significant differences between the subjects with CAI and the control group independent of jump direction. Subjects with CAI did report higher feelings of instability for both landing tasks and a higher difficulty level for the forward jump. Conclusion: Our results showed no altered lower limb kinematics in subjects with CAI compared to a healthy control group during a forward and side jump landing task. Therefore, these results question the hypothesis of kinematic deviations as part of an underlying mechanism of CAI.

Item Type: Article
Additional Information: This is a non-final version of an article published in final form in Medicine and Science in Sports and Exercise, v.47(6), pp. 1225-31
Uncontrolled Keywords: 1106 Human Movement And Sports Science
Subjects: R Medicine > RC Internal medicine > RC1200 Sports Medicine
Divisions: Sport & Exercise Sciences
Publisher: American College of Sports Medicine
Related URLs:
Date Deposited: 07 Aug 2015 10:39
Last Modified: 06 Sep 2017 22:41
DOI or Identification number: 10.1249/MSS.0000000000000525
URI: http://researchonline.ljmu.ac.uk/id/eprint/1800

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