Impact of posture and upper-limb muscle activity on grip strength

International Journal of Occupational Safety and Ergonomics : JOSE
Rahul JainGovind Sharan Dangayach

Abstract

Purpose. The current research was carried out to determine grip strength (GS) with change in posture and upper-limb muscle activity of manual workers and investigate the impacts of these changes. Methods. For the current research, 120 male and 80 female participants were selected and GS was assessed using a digital hand grip dynamometer in various conditions. Results. The outcomes showed that male participants had higher GS as compared to female participants. Maximum GS was found in a standing posture with the fixed forward shoulder at 45°, elbow at 90° and a neutral position of the wrist and forearm for all participants. Conclusions. Higher values of GS were attained in standing postures which may result in attainment of higher performance levels by the workers. The outcomes justify the importance of correct postures during manual work in industries employing traditional methods.

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Citations

Feb 3, 2021·Journal of Clinical Densitometry : the Official Journal of the International Society for Clinical Densitometry·Zheng-Yang XuYing-Kun Guo
Aug 18, 2020·The Journal of Surgical Research·Kai Siang ChanVishal G Shelat

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