Biomechanical assessment of alternative hand trucks for transporting heavy loads up and down stairs.
Biomechanical assessment of alternative hand trucks for transporting heavy loads up and down stairs.
复制标题
用于上下楼梯运输重物的替代手推车的生物力学评估。
DOI：
10.1016/j.apergo.2023.104010
复制
发表时间：
2023
影响因子：
3.2
通讯作者：
Sommerich,CarolynM
中科院分区：
文献类型：
--
作者：
Lavender,StevenA;Charbonnet,John;Sommerich,CarolynM
手推车经常用于送货和搬运职业，以搬运各种材料，包括电器和饮料。这些运输任务通常涉及上楼梯或下楼梯。这项研究评估了三种市售替代手推车设计的功效，这些设计可用于运送电器。九名经验丰富的参与者使用传统两轮手推车、多轮手推车和两速动力手推车在楼梯上上下移动一台 52.3 公斤的洗衣机。肌电图 (EMG) 数据显示，使用电动手推车上下楼梯时，右侧竖脊肌、双侧斜方肌和双侧二头肌的标准化反应降低了 90% 和 50%。相对于传统手推车，多轮手推车并未降低肌电图水平。然而，参与者确实对动力手推车以较慢的速度上升的时间表示了潜在的担忧。
Hand trucks are frequently used in delivery and moving occupations to move a variety of materials including appliances and beverages. Frequently these transport tasks involve ascending or descending stairs. This research assessed the efficacy of three commercially available alternative hand truck designs that could be used to deliver appliances. Nine experienced participants moved a 52.3 kg washing machine up and down a flight of stairs using a conventional two-wheeled hand truck, a multi-wheeled hand truck, and a two-speed powered hand truck. Electromyographic (EMG) data showed reduced right erector spinae, bilateral trapezius, and bilateral biceps 90thand 50thpercentile normalized responses while ascending and descending the stairs when using the powered hand truck. The multi-wheel hand truck did not reduce EMG levels relative to the conventional hand truck. Participants, however, did express a potential concern regarding the ascent time with powered hand truck at the slower speed.