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학술연구/단체지원/교육 등 연구자 활동을 지속하도록 DBpia가 지원하고 있어요.
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연구자들이 자신의 연구와 전문성을 널리 알리고, 새로운 협력의 기회를 만들 수 있는 네트워킹 공간이에요.
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Purpose : The study aims to see the effects of virtual reality and non-virtual reality in a normal person’s mirror walk on gait characteristics.
Methods : Twenty male adults (Age; 27.8±5.8) took part in the study. The subjects attached reflection markers for motion analysis, and walked aware of the virtual reality environment with mirrors wearing goggles showing them virtual environments. After gait in a virtual environment, the subjects walked in a non-virtual environment with mirrors a certain distance away after taking a five minute break. To prevent the order effect cause by the experiential difference of gait order, ten subjects were chosen randomly into groups and the order was differentiated. In each gait, infrared camera was used to detect motion and the position of the markers were saved real time.
Results : Comparison between virtual and non-virtual reality mirror walks showed that the movable range of leg joints (ankle, knee and hip joint), body joints (sacroiliac, atlantoaxial joint), arm joints (shoulder, wrist joint) showed meaningful differences. Temporal characteristics showed that virtual gaits speed were slower, and the cycle time and double limb support time of the gaits were longer. Furthermore, spacial characteristics showed that virtual gaits were shorter in steps length and strides length, the stride width longer and center of movement horizontally longer.
Conclusion : The reduction in joint movement in virtual reality is due to adverse effects on balance and efficiency during gait. Also, the change in temporal-spatial characteristics of gait would be due to change in gait mechanisms for balance, showing that virtual gaits are more demanding than the other. However, the subject group is a normal group with no abnormality in gait ability and balance ability, and it is not clear whether the decrease in performance is the result of environment or fear. Therefore it is necessary to understand whether the subject group's improvement and fear affect the result in future studies.
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