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Diane M. Doyle-Coombs

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Publications by Diane M. Doyle-Coombs (bibliography)

1988

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Bobick, Thomas G., Unger, Richard L., Gallagher, Sean and Doyle-Coombs, Diane M. (1988): Physiological Responses and Subjective Discomfort of Simulated Whole-Body Vibration from a Mobile Underground Mining Machine. In: Proceedings of the Human Factors Society 32nd Annual Meeting 1988. pp. 719-723.

“The U.S. Bureau of Mines has developed an in-house facility to evaluate selected effects of whole-body vibration (WBV) levels experienced by underground mobile equipment operators. Vertical vibration data were collected from a coal haulage vehicle via a uniaxial accelerometer attached to the machine frame under the operator's seat. Data were analyzed and processed so a computer-controlled platform could approximate the vibration signals. Eight men (35.5 yr 1 6.5 SD) participated in a pilot study to evaluate the effects of shock and WBV on heart rate (HR), blood pressure (BP), and subjective discomfort. Subjects were exposed to vibration for 30-min periods while seated in a typical seat (backrest angle at 90-degrees of 130-degrees that was plain steel or modified with 2 in foam padding. Subjects repeated the same protocol on a separate day, without the vibration. Results indicated the vibration significantly increased the HR (p < 0.05) increased significantly. Seatback angle had no significant effect on any of the dependent measures.”

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