Investigating the effect of hand grip duration on hand grip strength for female young adults

Awang Ahmad @ Yusof, Siti Zulaika (2024) Investigating the effect of hand grip duration on hand grip strength for female young adults. Project Report. Universiti Teknikal Malaysia Melaka, Melaka, Malaysia. (Submitted)

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Abstract

Hand grip strength, defined as the maximum force exerted by the hand, is crucial in many workplace settings. Prolonged gripping can negatively impact work performance and employee productivity. Since sustained grips are common in the workplace, understanding the impact of duration on grip strength is essential but there is a lack of studies examining the effect of grip duration on hand grip strength. Therefore, this study has three objectives, first to identify factors that affect hand grip strength in the workplace environment among young Malaysian women through a review of previous research papers. The second objective was to measure hand grip strength in Malaysian young adult women for different arm positions. The hand grip strength of 125 participants in different arm postures i.e. neutral, pronation and supination will be measured using a Jamar hand dynamometer in standing and sitting conditions. The third objective is to analyze the effect of hand grip duration on hand grip strength in young Malaysian women. For that, 39 participants were required to hold 20%, 40%, 60%, 80% and 100% of the maximum voluntary contraction (MVC) and the time for each grip activity was recorded. The findings revealed that job tasks, ambient temperature, time of day, and hand tool design significantly influence hand grip strength in the workplace. Additionally, young adult women exhibited greater hand grip strength while standing compared to sitting, and in neutral and supination positions compared to pronation. Furthermore, endurance time decreased significantly as the exertion force increased. This study provides valuable data on hand grip strength, highlighting the importance of time resistance and optimal positioning. The insights gained can help industries design efficient work systems and hand tools that minimize health risks and enhance worker performance.

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