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Full-Text Articles in Medicine and Health 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 …
Gender Difference In Lower Limb Muscle Activity During Landing And Rapid Change Of Direction, Gerwyn Hughes, N Dally
Gender Difference In Lower Limb Muscle Activity During Landing And Rapid Change Of Direction, Gerwyn Hughes, N Dally
Kinesiology (Formerly Exercise and Sport Science)
Objectives: The purpose of the study was to examine gender differences in lower limb muscle activity during jump landing and rapid change of direction. Equipment and Methods: Surface electromyography (EMG) of the rectus femoris, biceps femoris and gluteus maximus were recorded for 10 male and 10 female basketball, volleyball or netball players performing five repetitions each of two tasks; 1) landing from a maximal height vertical jump and, 2) 45º rapid change of direction on their dominant leg. Independent sample t-tests were conducted to determine sex differences and paired samples t-tests were conducted to determine task differences in peak EMG …