Biodynamic response of human fingers in a power grip subjected to a random vibration

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Dong, R. G.¹; Welcome, D. E.¹; McDowell, T. W.¹; Wu, J. Z.¹

Biodynamic response of human fingers in a power grip subjected to a random vibration

J Biomech Eng. August 2004;126(4):447-457

©2004 ASME

Affiliations

¹Engineering & Control Technology Branch, National Institute for Occupational Safety and Health, 1095 Willowdale Road, Morgantown, West Virginia 26505, USA
Abstract

Background: Knowledge of the biodynamic response (BR) of the human hand-arm system is an important part of the foundation for the measurement and assessment of handtransmitted vibration exposure. This study investigated the BR of human fingers in a power grip subjected to a random vibration.

Method: Ten male subjects were used in the experiment. Each subject applied three coupling actions to a simulated tool handle at three different finger grip force levels.

Results and Conclusions: The BR is practically independent of the hand coupling actions for frequencies at or above 100 Hz. Above 50 Hz, the BR is correlated to finger and hand sizes. Increasing the finger coupling force significantly increases the BR. Therefore, hand forces should be measured and used when assessing hand-transmitted vibration exposure. The results also show that under a constant-velocity vibration, the finger vibration power absorption at frequencies above 200 Hz is approximately twice that at frequencies below 100 Hz. This suggests that the frequency weighting specified in the current ISO 5349-1 (2001) may underestimate the high frequency effect on vibration-induced finger disorders.
Links

DOI: 10.1115/1.1784479

PubMed: 15543862

WoS: 000224668800007
History

Received: 2003-12-03

Revised: 2004-03-31

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Cited By (11)

Year	Entry
2006	Hosoya N, Maeda S. Establishment of an experimental system for measuring biodynamic response of hand-arm. In: Proceedings of the 1st American Conference on Human Vibration. June 5-7, 2006; Morgantown, MV.136-137.
2008	Shibata N, Maeda S. Comparison between biodynamic response parameters of the same subject obtained from two different vibration systems. In: Proceedings of the 2nd American Conference on Human Vibration. June 4-6, 2008; Chicago, IL.15-16.
2010	Mansfield NJ, Shibata N, Ishimatsu K, Maeda S. Effect of gripping in a trigger posture on apparent mass of the hand-arm system. In: Proceedings of the 3rd American Conference on Human Vibration. June 1-4, 2010; Iowa City, IA.43-44.
2014	Marcotte P, Rakheja S, Kalra M, Dewangan K. Evaluation of coupling forces on power tool handles using a thin film resistive pressure sensor. In: Proceedings of the 5th American Conference on Human Vibration. June 10-13, 2014; Guelph, ON.45-46.
2004	Dong RG, McDowell TW, Welcome DE, Wu JZ. An investigation of the relationship between vibration-induced white finger and power absorption. In: Proceedings of the 10th International Conference on Hand-Arm Vibration. June 7-11, 2004; Las Vegas, NV.161-167.
2004	McDowell TW, Dong RG, Welcome DE. A pilot study of glove effects on a force matching method. In: Proceedings of the 10th International Conference on Hand-Arm Vibration. June 7-11, 2004; Las Vegas, NV.169-174.
2005	Dong RG, Wu JZ, Welcome DE. Recent advances in biodynamics of human hand-arm system. Ind Health. July 2005;43(3):449-471.
2008	Dong JH, Dong RG, Rakheja S, Welcome DE, McDowell TW, Wu JZ. A method for analyzing absorbed power distribution in the hand and arm substructures when operating vibrating tools. J Sound Vibrat. April 8, 2008;311(3-5):1286-1304.
2009	Concettoni E, Griffin M. The apparent mass and mechanical impedance of the hand and the transmission of vibration to the fingers, hand, and arm. J Sound Vibrat. August 21, 2009;325(3):664-678.
2014	Eger T, Thompson A, Leduc M, Krajnak K, Goggins K, Godwin A, House R. Vibration induced white-feet: overview and field study of vibration exposure and reported symptoms in workers. Work. 2014;47(1):101-110.
2006	McDowell TW. An Evaluation of Vibration and Other Effects on the Accuracy of Grip and Push Force Recall [PhD thesis]. West Virginia University; 2006.