Department of Industrial and Systems Engineering, Auburn University, 3301 Shelby Center for Engineering Technology, Auburn, AL 36849, USA.
School of Forestry and Wildlife Sciences, Auburn University, 3423 School of Forestry and Wildlife Sciences, Auburn, AL 36849, USA.
Appl Ergon. 2018 Jan;66:1-8. doi: 10.1016/j.apergo.2017.07.013. Epub 2017 Aug 3.
Low back and neck/shoulder pain are commonly reported among reforestation hand planters. While some studies have documented the intensive cardiovascular demands of hand planting, limited information is available regarding exposures to physical risk factors associated with the development of musculoskeletal disorders (MSDs) among hand planters. This study used surface electromyography (EMG) and inertial measurement units (IMUs) to characterize the muscle activation patterns, upper arm and trunk postures, movement velocities, and physical activity (PA) of fourteen Southeastern reforestation hand planters over one work shift. Results indicated that hand planters are exposed to physical risk factors such as extreme trunk postures (32.5% of time spent in ≥45° trunk flexion) and high effort muscle exertions (e.g., mean root-mean-square right upper trapezius amplitude of 54.1% reference voluntary exertion) that may place them at increased risk for developing MSDs. The findings indicate a need for continued field-based research among hand planters to identify and/or develop maximally effective interventions.
腰痛和颈肩痛在植树工人中较为常见。虽然一些研究记录了手工植树的高强度心血管需求，但有关与手植树者肌肉骨骼疾病 (MSD) 发展相关的物理风险因素暴露的信息有限。本研究使用表面肌电图 (EMG) 和惯性测量单元 (IMU) 来描述 14 名东南植树工人在一个工作日的肌肉激活模式、上臂和躯干姿势、运动速度和体力活动 (PA)。结果表明，植树工人面临物理风险因素，如极端躯干姿势（32.5%的时间处于≥45°的躯干弯曲）和高用力肌肉用力（例如，右侧上斜方肌均方根的平均幅度为 54.1%参考自愿用力），这可能使他们面临更大的 MSD 风险。研究结果表明，需要继续在植树工人中进行基于现场的研究，以确定和/或开发最有效的干预措施。
