Please use this identifier to cite or link to this item: https://scholarbank.nus.edu.sg/handle/10635/136981
Title: MUSCULOSKELETAL AND BIOMECHANICS PERFORMANCE IN HUMAN MOTION: EFFECTS OF AGE, SPEED AND DEPTH
Authors: CHAN CHOW KHUEN
Keywords: Forward walking, Backward walking, Squatting, Speed, Depth, Elderly
Issue Date: 29-Mar-2017
Citation: CHAN CHOW KHUEN (2017-03-29). MUSCULOSKELETAL AND BIOMECHANICS PERFORMANCE IN HUMAN MOTION: EFFECTS OF AGE, SPEED AND DEPTH. ScholarBank@NUS Repository.
Abstract: Speed and depth are essential in assessing and predicting health deterioration. However, quantifications of these conditions are often inconsistent due to different methodologies. In particular, speed-related walking assessments are often experimented on the treadmill instead of over-ground. Moreover, the effect of advancing age in mobility has not been fully elucidated. Hence, this study focuses on the speed and depth effects in over-ground forward (FW) and backward (BW) walking, and squatting among the recreational-active young and elderly individuals. Altering speeds necessitate varying efforts from the hip and ankle during FW and BW, and hip and knee during squatting. Faster speed adapts more slow-twitching fibers, and vice versa. Speed increment elevates the muscle force, which is affected by muscle velocity. Deeper squat enhances slow-twitching fiber adaptation. Elderly is found to employ a distal-to-proximal strategy in FW but not in BW. More fast-twitching fibers are adapted during slower movement among the elderly.
URI: http://scholarbank.nus.edu.sg/handle/10635/136981
Appears in Collections:Ph.D Theses (Open)

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