An analysis of musculoskeletal disorders of upper eztremity in bowling players
Musculoskeletal disorders of the upper extremity due to sports activities occur in athletes. Among various factors, excessive forces, and high rate of repetitions are the major factors of cumulative injury in sports. The performances were deeply influenced by athletes sports injury. Therefore, how to diagnose the risk factors of cumulative trauma disorder (CTD) and early preventive prior to sports injuries, it is an important issue to research in sports injury protection. The purpose of this study was to investigate the musculoskeletal disorders of upper extremity in bowling ball. 18 bowling players were recruited and divided into three groups (spinner, hook and straight ball groups) by using different techniques and each subject finished four innings. The study onsite measured the electromyography (EMG) in deltoid, brachium biceps and triceps, and wrist flexor muscle, and wrist and elbow joint angles (wrist flexion/extension and radial/ulnar deviation; elbow flexion/extension) of subjects using a portable data logger. Collected data was batch processed by the analysis program to quantify ergonomic risk factors of the athletes. The study addressed the selection of repetitive risk factor from the measured data. The results showed the hook bowlers have larger activations in brachium biceps and wrist flexor (P<0.05) in front swing phase. When the spinner bowlers threw the ball, there were larger wrist extension and ulnar deviation than those of the straight ball players (p<0.05). Summery, the larger EMG in biceps and wrist flexor may be easy to fatigue in these muscles for hook bowlers. And the spinner bowlers with large wrist extension and ulnar deviation results in causing the wrist injury by the repetitive throwing.
Wei-Hsien Hong Hsieh-Ching Chen Horng-Chaung Hsu
Department of Sports Medicine, China Medical University, Taiwan Department of Industrial Engineering and Management, Chaoyang University of Technology, Taiwan Department of Orthopedics , China Medical University Hospital, Taiwan
国际会议
17th World Congress on Ergonomics(第十七届国际人类工效学大会)
北京
英文
1-3
2009-08-09（万方平台首次上网日期，不代表论文的发表时间）