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Measurements of the impedance of the hand and arm

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Summary

The mechanical impedance of the hand and arm was studied on ten healthy subjects during exposure to sinusoidal vibration within the frequency range of 2 to 1000 Hz. A special handle for the measurements was constructed. The influence of vibration direction, handle grip, grip force, vibration level, hand-arm posture and sex as well as anthropometric data were studied. The results show that the impedance of the hand-arm mainly depends on the frequency and direction of the vibration stimuli. Higher vibration levels, as well as more firm hand-grips, resulted in higher impedance. Furthermore, the outcome shows that experiments conducted with different hand-arm postures had an active influence on the mechanical impedance. Moreover, the subjects' sex and constitution of the hand and arm affected the impedance to a large extent.

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  1. National Institute of Occupational Health, P.O. Box 6104, S-90006, Umeå, Sweden

    Lage Burström

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  1. Lage Burström
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Burström, L. Measurements of the impedance of the hand and arm. Int. Arch Occup Environ Heath 62, 431–439 (1990). https://doi.org/10.1007/BF00379059

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  • DOI: https://doi.org/10.1007/BF00379059

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