Dynamic Joint Motions in Occupational Environments as Indicators of Potential Musculoskeletal Injury Risk
Dynamic Joint Motions in Occupational Environments as Indicators of Potential Musculoskeletal Injury Risk
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DOI：
10.1123/jab.2020-0213
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发表时间：
2021-06-01
影响因子：
1.4
通讯作者：
Marras, William S.
中科院分区：
文献类型：
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作者：
Dufour, Jonathan S.;Aurand, Alexander M.;Marras, William S.
本研究的目的是测试使用一对可穿戴惯性测量单元 (IMU) 传感器在模拟职业条件下准确捕获动态关节运动数据的可行性。 11 名受试者（5 名男性和 6 名女性）在实验室环境中进行了重复的颈部、腰部和肩部运动，模拟低难度和高难度的职业任务。除了“黄金标准”被动标记光学运动捕捉系统之外，还通过 IMU 传感器测量 3 个关节中每个关节的运动学。 IMU 精度相对于光学运动捕捉系统进行了基准测试，并评估了 IMU 对低难度和高难度任务的灵敏度。 IMU 传感器的平均精度非常好，但在一些试验中观察到明显的位置漂移。此外，IMU 测量结果显示对所有 3 个关节的任务难度差异很敏感 (P
The objective of this study was to test the feasibility of using a pair of wearable inertial measurement unit (IMU) sensors to accurately capture dynamic joint motion data during simulated occupational conditions. Eleven subjects (5 males and 6 females) performed repetitive neck, low-back, and shoulder motions simulating low- and high-difficulty occupational tasks in a laboratory setting. Kinematics for each of the 3 joints were measured via IMU sensors in addition to a "gold standard" passivemarker optical motion capture system. The IMU accuracy was benchmarked relative to the optical motion capture system, and IMU sensitivity to low- and high-difficulty tasks was evaluated. The accuracy of the IMU sensors was found to be very good on average, but significant positional drift was observed in some trials. In addition, IMU measurements were shown to be sensitive to differences in task difficulty in all 3 joints (P