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Title Lower extremity gait kinematics on slippery surfaces in construction worksite
| Content Provider | Semantic Scholar |
|---|---|
| Author | Fong, Daniel Tik-Pui Youlian Jing-Xian, Li |
| Copyright Year | 2016 |
| Abstract | Purpose: The purpose of this study was to investigate the lower extremity kinematics when walking on potential slippery surfaces in simulated construction worksite environments. Methods: A survey was conducted to select two footwear, two floorings and four contaminants to represent the local construction worksite environments and made sixteen simulated conditions. A mechanical slip resistant test was conducted to evaluate the slipping potential of the sixteen conditions by the value of dynamic coefficient of friction. The sixteen conditions were classified into three groups by slipping potential. 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. Gait pattern parameters were obtained. Lower extremity kinematics data were time-normalized from foot strike (0% stance) to take off (100% stance), and were extracted from foot strike to mid-stance (50% stance) at 10% stance intervals. Results: 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. Conclusion: 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. Such strategy included to reduce range of motion, to maintain a stiff joint, to achieve flat-foot landing or plantar-flexed ankle joint during the first 10% stance. |
| File Format | PDF HTM / HTML |
| Alternate Webpage(s) | https://s3-eu-west-1.amazonaws.com/pstorage-loughborough-53465/17275901/2.pdf |
| Language | English |
| Access Restriction | Open |
| Content Type | Text |
| Resource Type | Article |
