Investigating The Effect Of Upper Arm Postures On The Hand Grip Strength Requirement For Female Malaysian Young Adult

Abdul Razim, Rozieani (2019) Investigating The Effect Of Upper Arm Postures On The Hand Grip Strength Requirement For Female Malaysian Young Adult. Project Report. UTeM, Melaka, Malaysia. (Submitted)

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Abstract

In this world of globalization, most of the manufacturing industry required its worker to use gripping ability to produce or to done a task. All this gripping task has different strength depends on the upper arm postures and how frequent the task required gripping. Power tools are the most crucial thing to be used in most of the industry, it is necessary make it more convenience the user. By knowing the maximum hand grip strength, it helps to a better understand on how to design or to make a task to become more efficient. However, there are limited databases that are related to hand grip strength that deals with upper arm posture for female Malaysian young adult. Not just that, engineer or design engineer find it difficult to design or to improve a tool that is suitable for female Malaysian young adult. Also, there are limited study about the effect of frequency rate to hand grip strength when using an actual power tool that focused on female as the subject of the study. Thus, the objective of this study is to explore the relationship between upper arm postures and hand grip strength which using the literature review that clearly showed that there is relationship between the upper arm posture to the handgrip strength. As the posture influenced the handgrip strength of a person. Not just that, the second objective of this study is to develop databases of handgrip strength for upper arm postures at 0°, 45°, 90°, 135° and 180° that is focused on 185 female Malaysian young adult that using the Jamar Hand dynamometer to measure the grip strength. The results showed that the strongest handgrip strength was when the upper arm postures at 180° at age group 2 (25-30 years old) and the weakest handgrip strength was when the upper arm postures at 45° at age group 4 (35-39 years old). Lastly, to study the relationship between the frequency task rate to the hand grip strength of 60 respondents using the actual power tool and the results showed that the higher the frequency of a task, the weaker the handgrip strength.

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