Investigation of oil palm harvesting tools design and technique on work-related musculoskeletal disorders of the upper body

S. Mohamaddan, M. A. Rahman, M. Andrew_Munot, S. J. Tanjong, B. M. Deros, S. Z. Md Dawal, K. Case

研究成果: Article査読

1 被引用数 (Scopus)

抄録

The oil palm industry is one of the important sectors in Malaysia. The growth and development of this industry shows that Malaysia is the world second-largest oil palm producers. However, in the fresh fruit bunch (FFB) harvesting process, the harvesters are exposed to many types of work-related musculoskeletal disorders (WMSDs). The FFB harvesters tend to develop WMSDs especially the shoulders and trunk. Hence, it is important to identify the exposure levels, awkward postures and the reaction forces of muscle activity based on the posture and movement of the harvesters when using pole, chisel and loading spike during the harvesting process. The objective of this study was to investigate the effect of the design of oil palm FFB harvesting tools on WMSDs of the upper body. Rapid Upper Limb Analysis (RULA) was used to investigate and assess the exposure level on the harvester body during the harvesting process. The assessment showed that the shoulders and trunk have high exposure level and undergo awkward posture. Human Musculoskeletal Model Analysis (HMMA) was used to identify the reaction force exerted on the muscle during the FFB harvesting process. In this study, 4 muscles were analysed including Triceps, Biceps, Erector Spinae and Psoas Major. The highest reaction force of 16.36 N was found on the left triceps when handling a loading spike. In conclusion, it is important to address the risks by reviewing all possible aspects that contribute to the WMSDs and interventions on the tool design, task and working shifts may be required.

本文言語English
論文番号103226
ジャーナルInternational Journal of Industrial Ergonomics
86
DOI
出版ステータスPublished - 2021 11月

ASJC Scopus subject areas

  • 人的要因と人間工学
  • 公衆衛生学、環境および労働衛生

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