title: Effects of lower-limb muscular fatigue on stair gait.
abstract: The objective of the present study was to determine the effects of lower-limb muscular fatigue on stair gait. Twelve healthy young male adults between 20 and 30 years old participated in the experiment. There were two experimental sessions corresponding to a no fatigue condition and a lower-limb muscular fatigue condition, respectively. Lower-limb muscular fatigue was induced using repetitive lower-limb pushing exertions. Both ascent and descent were studied. Stair gait was assessed by lower-limb joints and trunk kinematics, and postural stability measures. It was found that lower-limb muscular fatigue compromised stair gait during descent, but did not make any difference during ascent. These findings highlighted the importance of minimizing exposures to lower-limb muscular fatigue during descent in stair accident prevention.
authors.affiliation: Institute of Human Factors and Ergonomics, College of Mechatronics and Control Engineering, Shenzhen University, 3688 Nanhai Avenue, Shenzhen, Guangdong Province 518060, China. Electronic address: quxd@szu.edu.cn.
authors.forename: Xingda
authors.initials: X
authors.lastname: Qu
mesh_terms: D000328:Adult; D001696:Biomechanical Phenomena; D005684:Gait; D006801:Humans; D007866:Leg / Q000502:physiology; D008297:Male; D018763:Muscle Fatigue; D018482:Muscle, Skeletal / Q000502:physiology; D004856:Postural Balance; D016138:Walking; D055815:Young Adult
keywords: Kinematics; Lower-limbs; Muscular fatigue; Postural stability; Stair gait