In this study, lift chair was developed to reduce safety accidents in the daily lives of elderly people with reduced muscle strength as the importance of health and well-being of the elderly was emphasized by the increase in the elderly population. In addition, muscle strength characteristics of the elderly and those in their 20s were compared and analyzed when using lift chair. The lift chair used are chairs that can be raised and lowered and designed to reach the floor in full descent. The EMG was measured to compare the near-term use of lift chair to those in their 20s. As a result, the elderly had higher use of lower limb muscles compared to young participants. It was judged that the upper and lower extremities were difficult to move due to the characteristics of the elderly with reduced muscle strength, and that the upper and lower limbs were used simultaneously to complete the movement. The results showed the characteristics of everyday motion of the elderly for the development of lift chair and can help improve design, function, etc. in later development of lift chair.

中文翻译：

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年轻人和老年人在地板和床转移运动中肌肉使用模式的生物力学比较

在这项研究中，由于老年人口的增加强调了老年人健康和福祉的重要性，因此开发了升降椅以减少肌肉力量减弱的老年人日常生活中的安全事故。此外，比较分析了老年人和20多岁的人在使用升降椅时的肌肉力量特征。使用的升降椅是可以升高和降低的椅子，设计为完全下降到达地板。测量 EMG 以比较近期使用升降椅和 20 多岁的人。结果，与年轻参与者相比，老年人的下肢肌肉使用率更高。由于老年人肌肉力量下降的特点，判断出上下肢活动困难，并同时使用上肢和下肢完成动作。研究结果显示了老年人日常运动的特点，对电梯椅的开发有帮助，有助于在电梯椅的后期开发中改进设计、功能等。