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Social and Behavioral Sciences Commons™
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Full-Text Articles in Social and Behavioral Sciences
The Effect Of Arm Position On Lower Extremity Kinematics During A Single Limb Drop Landing: A Preliminary Study, C. Masters, J. Johnstone, Gerwyn Hughes
The Effect Of Arm Position On Lower Extremity Kinematics During A Single Limb Drop Landing: A Preliminary Study, C. Masters, J. Johnstone, Gerwyn Hughes
Kinesiology (Formerly Exercise and Sport Science)
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 Effect Of Repetitive Ankle Perturbations On Muscle Reaction Time And Muscle Activity, Peter K. Thain, Andrew C.S. Mitchell, Gerwyn Hughes
The Effect Of Repetitive Ankle Perturbations On Muscle Reaction Time And Muscle Activity, Peter K. Thain, Andrew C.S. Mitchell, Gerwyn Hughes
Kinesiology (Formerly Exercise and Sport Science)
The use of a tilt platform to simulate a lateral ankle sprain and record muscle reaction time is a well-established procedure. However, a potential caveat is that repetitive ankle perturbation may cause a natural attenuation of the reflex latency and amplitude. This is an important area to investigate as many researchers examine the effect of an intervention on muscle reaction time. Muscle reaction time, peak and average amplitude of the peroneus longus and tibialis anterior in response to a simulated lateral ankle sprain (combined inversion and plantarflexion movement) were calculated in twenty-two physically active participants. The 40 perturbations were divided …