근감소증 노인의 앉은 상태에서 일어서기 동작 시 체간 및 체중심 특성분석: 사례연구
Analysis of the features of trunk and CoM while sit-to-stand motion in an elderly with sarcopenia: Case study
The purpose of this study was to analyzed the features of trunk movement and the center of mass in the elderly with sarcopenia during sit-to-stand(STS) motion. This study was conducted on an elderly with sarcopenia, 3 healthy elderly and 3 adults and analyzed the STS motion using a 3D motion analysis system. In this results, we found that an elderly with sarcopenia had the STS motion time 1. 6 times longer than healthy elderly, and the seat off timing was 6% delayed. In addition, an elderly with sarcopenia had increased full ROM, maximum flexion angle and angular velocity of trunk as using the rapid bending trunk motion for compensation of muscle weakness, and especially, the vertical CoM displacement of the sarcopenia was 313mm, which was 31% higher than that of the health elderly. The increase in vertical CoM displacement is expected to increase the risk of falls with decreasing energy efficiency. This study results can be used as basic data related to development of the robot assistive device, rehabilitation training and functional assessment of the elderly patients with sarcopenia.
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