Lower eztremity gait kinematics on slippery surfaces in construction worksite
The purpose of this study was to investigate the lower extremity kinematics when walking on potential slippery surfaces in simulated construction worksite environments. Two footwear, two floorings and four contaminants were determined to represent the local construction worksite environments through a survey, which made sixteen simulated conditions. The sixteen conditions were then classified into three groups by slipping potential through a mechanical slip resistant test. Fifteen Chinese harnessed male subjects were instructed to walk and avoid slips on each of the sixteen simulated five-meter walkways ten times at their natural cadence. The movements in sagittal plane were videotaped, digitized and analyzed by motion analysis system. ANOVA showed that with increased slipping potential, changes in gait pattern parameters included increased stance and stride time, shortened stride length, decreased propagation speed and gentle heel strike. In lower extremity kinematics parameters, significant differences were found mainly at ankle joint rather than at knee joint. It is concluded that strategy to prevent slips included increased stance and stride time, shortened stride length, decreased propagation speed and gentle heel strike. Ankle joint played the most important adaptation strategy.
Occupational slips falls injury prevention gait adaptation slipping potential measurement
Youlian HONG Daniel Tik-Pui FONG Jingxian LI
Department of Sports Science and Physical Education, The Chinese University of Hong Kong Department of Orthopaedics and Traumatology, The Chinese University of Hong Kong School of Human Kinetics, University of Ottawa
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
1-6
2009-08-09（万方平台首次上网日期，不代表论文的发表时间）