Naik Gouri, Khan Mohammed Rajik
Department of Design, IIT, Delhi, India.
Department of Industrial Design, National Institute of Technology Rourkela, 769008, Odisha, India.
Saf Health Work. 2020 Mar;11(1):80-87. doi: 10.1016/j.shaw.2019.12.005. Epub 2019 Dec 19.
Residential and commercial cleaning is a part of our daily routine to maintain sanitation around the environment. Health care of professionals involved in such cleaning activities has become a major concern all over the world. The present study investigates the risk of musculoskeletal disorders in professional cleaners involved in floor mopping tasks.
A cross-sectional study was performed on 132 mopping professionals using a modified Nordic questionnaire. The Pearson correlation test was implemented to study the association of perceived pain with work experience. The muscle strain and postural risk were evaluated by means of three-channel electromyography and real-time motion capture respectively of 15 professionals during floor mopping.
Regarding musculoskeletal injuries, risk was reported majorly in the right hand, lower back, left wrist, right shoulder, left biceps, and right wrist of the workers. Work experience had a low negative association with MSDs in the left wrist, right wrist, right elbow, lower back, and right lower arm ( < 0.01). Surface EMG showed occurrence of higher muscle activity in upper trapezius and biceps brachii (BB) muscles of the dominant hand and flexor carpi radialis and BB muscles of the nondominant hand positioned at the upper and lower portion of the mop rod, respectively.
Ergonomic mediations should be executed to lessen the observed risk of musculoskeletal injuries in this professional group of workers.
住宅和商业清洁是我们日常维护环境卫生的一部分。从事此类清洁活动的专业人员的健康护理已成为全球主要关注的问题。本研究调查了从事拖地任务的专业清洁工患肌肉骨骼疾病的风险。
使用改良的北欧问卷对132名拖地专业人员进行了横断面研究。采用Pearson相关检验研究感知疼痛与工作经验之间的关联。在15名专业人员拖地过程中，分别通过三通道肌电图和实时动作捕捉评估肌肉劳损和姿势风险。
关于肌肉骨骼损伤，据报告工人的右手、下背部、左手腕、右肩、左二头肌和右手腕风险较高。工作经验与左手腕、右手腕、右肘、下背部和右下臂的肌肉骨骼疾病呈低负相关（<0.01）。表面肌电图显示，优势手的斜方肌上部和肱二头肌，以及位于拖把杆上部和下部的非优势手的桡侧腕屈肌和肱二头肌出现较高的肌肉活动。
应采取人体工程学干预措施，以降低该职业工人群体中观察到的肌肉骨骼损伤风险。
