Mirshams Shahshahani Payam, Masteling Mariana, Ashton-Miller James A
Department of Mechanical Engineering, University of Michigan, Ann Arbor, MI, USA.
Department of Biomedical Engineering, University of Michigan, Ann Arbor, MI, USA.
IISE Trans Occup Ergon Hum Factors. 2024 Oct 3:1-9. doi: 10.1080/24725838.2024.2409261.
OCCUPATIONAL APPLICATIONSAssessing workers' strength capacities is a common practice prior to return to work following injury or illness, or assessing capabilities for strenuous jobs. Because it requires 50% or more of maximum strength capacity, hip abductor muscle strength is a strong predictor of both middle- and older-aged individuals' ability to reliably balance on one leg and of their risk of falls. Our results suggest subjects were able to augment their hip abductor moment during unipedal weight stance gluteus maximus activity. Weight-bearing hip abduction strength measures are important for assessing worker capacity for jobs requiring reliable unipedal balance whether during lateral loading, while walking in gusty winds, on slippery footing or resisting lateral deck movements on board ship or train. Measurements of hip abductor strength should be made in a full unipedal weight bearing posture; non-weight-bearing measurements significantly underpredicted hip abductor strength as well as endurance.
职业应用
在工伤或疾病后重返工作岗位之前，评估工人的力量能力是一种常见做法，或者是评估从事高强度工作的能力。由于髋外展肌力量需要达到最大力量能力的50%或更多，因此它是中老年个体单腿可靠平衡能力以及跌倒风险的有力预测指标。我们的结果表明，受试者在单腿负重站立时臀大肌活动期间能够增强其髋外展力矩。负重髋外展力量测量对于评估工人从事需要可靠单腿平衡工作的能力很重要，无论是在侧向负载期间、在强风中行走时、在湿滑地面上还是在船上或火车上抵抗甲板横向移动时。髋外展力量的测量应在完全单腿负重姿势下进行；非负重测量显著低估了髋外展力量以及耐力。
