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J. Funct. Morphol. Kinesiol. 2016, 1(3), 282-288; doi:10.3390/jfmk1030282

The Effect of Arm Position on Lower Extremity Kinematics during a Single Limb Drop Landing: A Preliminary Study

Department of Psychology and Sports Sciences, University of Hertfordshire, AL10 9AB Hatfield, UK
The Cambridge Centre for Sport and Exercise Sciences, Anglia Ruskin University, CB1 1PT Cambridge, UK
Department of Kinesiology, University of San Francisco, San Francisco, CA 94117, USA
Author to whom correspondence should be addressed.
Academic Editor: Giuseppe Musumeci
Received: 20 May 2016 / Revised: 20 June 2016 / Accepted: 27 June 2016 / Published: 30 June 2016
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Anterior cruciate ligament (ACL) injuries occur most commonly during non-contact situations, such as landing from a jump. Arm position has been shown to affect the loading of the lower extremity and therefore alter the potential injury risk. This study aimed to investigate the effect of arm position on lower extremity kinematics during single limb drop landings. Eight recreational American football players performed single limb drop landings on their preferential limb in four different conditions; (1) control (arms free); (2) arms to landing limb side; (3) arms in front of body; and (4) arms away from landing limb side. Kinematics of the hip, knee and ankle were recorded in both the sagittal and frontal planes at initial ground contact and maximum. Results showed that there was a significant decrease in maximum hip flexion and a significant increase in peak dorsiflexion when landing with arms away from the landing-side limb. Since decreased hip flexion and increased ankle dorsiflexion have been proposed to increase the likelihood of ACL injury, it would appear that landing with arms away from the landing-side limb may increase the risk of ACL injury, and therefore athletes should avoid this position when landing from a jump. View Full-Text
Keywords: anterior cruciate ligament; landing; kinematics anterior cruciate ligament; landing; kinematics

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This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited. (CC BY 4.0).

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MDPI and ACS Style

Masters, C.; Johnstone, J.; Hughes, G. The Effect of Arm Position on Lower Extremity Kinematics during a Single Limb Drop Landing: A Preliminary Study. J. Funct. Morphol. Kinesiol. 2016, 1, 282-288.

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J. Funct. Morphol. Kinesiol. EISSN 2411-5142 Published by MDPI AG, Basel, Switzerland RSS E-Mail Table of Contents Alert
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