腰背痛(LBP)是与举重有关的残疾的主要原因。为了尽量减少背痛的风险,被称为提升外骨骼的新兴技术旨在优化提升运动。然而,目前尚不清楚最小支撑外骨骼是否可以改变没有LBP的人的提升运动。这项研究旨在调查是否穿着新颖的轻量级外骨骼,最小地支撑背部,臀部,和膝盖可以改变没有LBP的人的运动和运动变化的提升范围。这项研究还旨在研究佩戴这种新型外骨骼是否可以导致可靠的日间提升运动。在两个单独的会议中(每个间隔一周),十四名参与者举起一个盒子(重他们体重的10%)十次,一次穿着外骨骼,一次不穿着外骨骼。在提升过程中佩戴新型外骨骼产生中高,重测信度(干线:ICC3,1=0.89,95%CI[0.67,0.96],SEM=9.34°;髋关节:ICC3,1=0.63,95%CI[0.22,0.88],SEM=2.57°;膝盖:ICC3,1=0.61,95%CI[0.23,0.87],SEM=2.50°)。佩戴外骨骼显著降低了膝盖的运动范围(F1,4=4.83,p=0.031,ηp2=0.06)。此外,穿戴外骨骼显著降低髋部(diff=8.38,p=0.045)和膝关节(diff=-8.57,p=0.038)运动变异性;然而,穿戴外骨骼并没有降低身体躯干的运动变异性(diff=0.60,p=1.00).因此,通过使用外骨骼进行最小支撑的提升可以在没有LBP的情况下修改人的运动并产生可靠的提升运动。佩戴新型外骨骼对于监测提升运动也是期望的。未来的研究应该调查使用传感器和IMU来监测工作中的提升运动,同时对个人运动的侵入量最小。
Low back pain (LBP) is a major contributor to lifting-related disabilities. To minimize the risk of back pain, emerging technologies known as lifting exoskeletons were designed to optimize lifting movements. However, it is currently unknown whether a minimally supportive exoskeleton can alter the lifting
movement in people without LBP. This study aims to investigate if wearing a novel lightweight exoskeleton that minimally supports the back, hip, and knee can alter the lifting range of motion and movement variations in people without LBP. This study also aims to investigate if wearing this novel exoskeleton can result in a reliable between-day lifting movement. In two separate sessions (each one week apart), fourteen participants lifted a box (that weighed 10% of their body weight) ten times, once while wearing an exoskeleton and once while not wearing an exoskeleton. Wearing the novel exoskeleton during lifting produced moderate-high, test-retest reliability (Trunk: ICC3,1 = 0.89, 95% CI [0.67, 0.96], SEM = 9.34°; Hip: ICC3,1 = 0.63, 95% CI [0.22, 0.88], SEM = 2.57°; Knee: ICC3,1 = 0.61, 95% CI [0.23, 0.87], SEM = 2.50°). Wearing an exoskeleton significantly decreased the range of motion of the knee (F1,4 = 4.83, p = 0.031, ηp2 = 0.06). Additionally, wearing an exoskeleton significantly decreased hip (diff = 8.38, p = 0.045) and knee (diff = -8.57, p = 0.038) movement variability; however, wearing an exoskeleton did not decrease the
movement variability of the body\'s trunk (diff = 0.60, p = 1.00). Therefore, minimally supported lifting through the use of exoskeletons can modify
movement in people without LBP and produce reliable lifting movements. Wearing the novel exoskeleton is also desirable for monitoring lifting movements. Future studies should investigate the use of sensors and IMU to monitor lifting
movement at work with the least amount of intrusion on an individual\'s
movement.