Impact of posture and upper-limb muscle activity on grip strength |
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Authors: | Rahul Jain Makkhan Lal Meena Manoj Kumar Sain Govind Sharan Dangayach |
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Institution: | 1. University Teaching Department, Rajasthan Technical University Kota, India https://orcid.org/0000-0002-4355-7744;2. Department of Mechanical Engineering, Malaviya National Institute of Technology Jaipur, India https://orcid.org/0000-0001-8216-0929;3. Department of Mechanical Engineering, Malaviya National Institute of Technology Jaipur, India;4. Department of Mechanical Engineering, Swami Keshvanand Institute of Technology, India |
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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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Keywords: | agriculture grip strength manual workers posture upper-limb muscle activity |
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