Effects of the Auxivo CarrySuit occupational exoskeleton when carrying front and side loads on a treadmill
Effects of the Auxivo CarrySuit occupational exoskeleton when carrying front and side loads on a treadmill
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Auxivo CarrySuit 职业外骨骼在跑步机上承载正面和侧面负载时的效果
DOI：
10.1016/j.jbiomech.2023.111692
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发表时间：
2023
影响因子：
2.4
通讯作者：
Novak, Vesna D.
中科院分区：
文献类型：
--
作者：
Goršič, Maja;Novak, Vesna D.
低成本的外骨骼可以有效地支持从事体力要求高的工作的工人，但大多数此类外骨骼的开发都是为了支持重复举起或不舒服的静态姿势。很少有低成本的外骨骼被设计成可以在搬运重物时行走，这对搬运家具和仓库工作等工作是有益的。因此，本文介绍了Auxivo CarrySuit的单节实验室评估，Auxivo CarrySuit是一种低成本的上身外骨骼，设计用于携带通常用手臂固定的物体。20名参与者在装有和不装有CarrySuit的跑步机上搬运四个负荷(盒子或两个袋子，总重量20或40磅)，每人2分钟。在所有负荷中，CarrySuit显著降低了中斜方肌(部分ETA平方=40.74，从最大自主收缩值的16.1%到8.8%)和三角肌(部分ETA平方=40.26，从最大自愿收缩值的3.0%到1.1%)的平均肌电活动，而下背部肌肉的激活没有相应的增加。此外，CarrySuit还降低了最大心率和感觉到的劳累等级，并将不适从上半身转移到腿部。虽然没有测量手臂肌电，但很可能也由于手臂的卸载而减少了。因此，CarrySuit在短期内可以被认为是有益的，尽管需要对实际工人进行长期评估，以确定实际好处。
Low-cost exoskeletons can effectively support workers in physically demanding jobs, but most such exoskeletons have been developed to support repetitive lifting or uncomfortable static postures. Very few low-cost exoskeletons have been designed to support walking while carrying heavy objects, which would be beneficial for jobs such as moving furniture and warehouse work. This paper thus presents a single-session lab evaluation of the Auxivo CarrySuit, a low-cost upper-body exoskeleton designed for carrying objects that would normally be held with the arms. Twenty participants carried four loads (box or two bags, 20 or 40 lb total weight) for 2 min each on a treadmill with and without the CarrySuit. Across all loads, the CarrySuit significantly reduced the mean electromyogram of the middle trapezius (partial eta-squared = 0.74 – from 16.1% to 8.8% of maximum voluntary contraction value) and anterior deltoid (partial eta-squared = 0.26 – from 3.0% to 1.1% of maximum voluntary contraction value) with no corresponding increase in lower back muscle activation. Furthermore, maximum heart rate and Ratings of Perceived Exertion were also reduced by the CarrySuit, and discomfort was shifted from the upper body to the legs. While arm EMG was not measured, it is likely that it was also reduced due to the unloading of the arms. The CarrySuit can thus be considered beneficial in the short term, though longer-term evaluations with actual workers are needed to determine practical benefits.