Department of Industrial Engineering, College of Engineering, King Saud University, Riyadh, Saudi Arabia.
Department of Mechanical Engineering, College of Engineering, Al-Azhar University, Cairo, Egypt.
J Healthc Eng. 2018 Jun 27;2018:5340592. doi: 10.1155/2018/5340592. eCollection 2018.
Shopping as a daily activity that involves carrying shopping bags in hands might be associated with risk factors contributing to the development of low back pain (LBP) and strains and sprains in the upper extremity. A three-way repeated measures experiment was conducted for the purpose of the study. The independent variables were holding style, carrying technique, and shopping bags' weights. The dependent variables were cardiac cost, muscles' activities as a percentage of their maximum voluntary contraction's EMG (%MVC), peak plantar pressure (PPP), and discomfort rating. Carrying grocery bags with both hands to the sides of the body using shopping bags' holder was favorable and advantageous to other carrying conditions in terms of less cardiac cost, less %MVC, less peak plantar pressure, and less discomfort. It is useful to carry grocery bags close to the body with both hands using holders that are available in the local market.
购物是一种日常活动，需要用手提着购物袋，这可能与导致下背痛（LBP）和上肢扭伤和拉伤的危险因素有关。本研究采用了三向重复测量实验。独立变量为握持方式、携带技术和购物袋的重量。因变量为心脏成本、肌肉活动占其最大自主收缩肌电图（%MVC）的百分比、峰值足底压力（PPP）和不适评分。用购物袋的支架将杂货袋双手侧提至身体两侧是有利的，比其他携带方式更有利于降低心脏成本、减少%MVC、减少峰值足底压力和减轻不适。用双手将杂货袋靠近身体，使用当地市场上可用的支架是很有用的。
