The Prevalence and Associated factors of muscles and skeleton systems in The Air conditioning assembly plant

Abstract

This research aimed to study the prevalence and factors related to musculoskeletal disorders among air-conditioner assembly line operators. This study was conducted on a group of 193 operators performing duties at an air-conditioner assembling factory. The interview method aimed at collecting data consisted of individual factors, job characteristic factors, environmental satisfaction factors, working posture factors, psychological factors as well as parts of the body. The interview process was conducted from May to July 2023. After the sample group of operators had been interviewed, the results of the study were summarized as follows; the cross-sectional study revealed that there were five significant factors of musculoskeletal disorders which were individual factors such as gender (p<0.001) and education (p=0.001), job characteristic factors such as section (p=0.01) and work duration (p<0.001), environmental factors such as temperature (p=0.006), working posture factors such as work with hand above shoulders (p<0.001), and psychological factors (p=0.008). Moreover, it was found that the lower back (31.6%) and the shoulders (28.5%) were the most of body parts being injured in the air-conditioning assembly work respectively. Therefore, it is clear that these factors were significantly related to musculoskeletal disorders.
There are two main recommendations for this research. Firstly, RULA and REBA analysis should be conducted to assess the risk level of musculoskeletal disorders. Secondly, the number of sample group should be increased. In addition, other study should be done in this point hereinafter, apart from assembly line operators, other work type should be surveyed such as, office operators and forming metal operators.