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Social and Behavioral Sciences Commons™
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Articles 1 - 4 of 4
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 …
A Review Of Recent Perspectives On Biomechanical Risk Factors Associated With Anterior Cruciate Ligament Injury, Gerwyn Hughes
A Review Of Recent Perspectives On Biomechanical Risk Factors Associated With Anterior Cruciate Ligament Injury, Gerwyn Hughes
Kinesiology (Formerly Exercise and Sport Science)
There is considerable evidence to support a number of biomechanical risk factors associatiated with non-contact anterior cruciate ligament (ACL) injury. This paper aimed to review these biomechanical risk factors and highlight future directions relating to them. Current perspectives investigating trunk position and relationships between strength, muscle activity and biomechanics during landing/cutting highlight the importance of increasing hamstring muscle force during dynamic movements through altering strength, muscle activity, muscle length and contraction velocity. In particular, increased trunk flexion during landing/cutting and greater hamstring strength are likely to increase hamstring muscle force during landing and cutting which have been associated with reduced …
Lower Limb Coordination And Stiffness During Landing From Volleyball Block Jumps, Gerwyn Hughes, James Watkins
Lower Limb Coordination And Stiffness During Landing From Volleyball Block Jumps, Gerwyn Hughes, James Watkins
Kinesiology (Formerly Exercise and Sport Science)
The aim of the study was to investigate lower limb coordination and stiffness in five male and five female university volleyball players performing block jump landings. Coordination was assessed using angle – angle plots of the hip – knee, knee – ankle and hip – ankle joint couplings and discrete relative phase (DRP) of right – left joint couplings (i.e. left knee coupled with right knee). Leg stiffness was calculated as the ratio of the change in vertical ground reaction force (GRF) to the change in vertical displacement of the centre of gravity between ground contact and maximum vertical GRF. …
Gender Differences In Lower Limb Frontal Plane Kinematics During Landing, Gerwyn Hughes, James Watkins, Nick Owen
Gender Differences In Lower Limb Frontal Plane Kinematics During Landing, Gerwyn Hughes, James Watkins, Nick Owen
Kinesiology (Formerly Exercise and Sport Science)
The study aimed to investigate gender differences in knee valgus angle and interknee and inter-ankle distances in university volleyball players when performing opposed block jump landings. Six female and six male university volleyball players performed three dynamic trials each where subjects were instructed to jump up and block a volleyball suspended above a net set at the height of a standard volleyball net as it was spiked against them by an opposing player. Knee valgus/varus, interknee distance and inter-ankle distance (absolute and relative to height) were determined during landing using 3D motion analysis. Females displayed significantly greater maximum valgus angle …