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Related Experiment Video

Updated: Jun 30, 2026

Measurement of Vibration Detection Threshold and Tactile Spatial Acuity in Human Subjects

Measurement of Vibration Detection Threshold and Tactile Spatial Acuity in Human Subjects

Published on: September 1, 2016

Human response to shock-type vibration on hand

Y Yonekawa¹, K Kanada, Y Takahashi

¹National Institute of Industrial Health, Kawasaki, Japan.

Central European Journal of Public Health

|February 1, 1996

Summary

This summary is machine-generated.

Human perception of hand-transmitted vibration differs between continuous and shock-type exposures. Shorter on-times and longer off-times reduce the perceived magnitude of repeated vibrations.

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Area of Science:

Occupational health
Human factors engineering
Vibration research

Background:

Hand-transmitted vibration is a common occupational hazard.
Understanding human response to different vibration types is crucial for setting safety standards.

Purpose of the Study:

To investigate subjective equality points between continuous and shock-type vibration.
To characterize human response to repeated, short-duration vibrations.

Main Methods:

Participants experienced hand-transmitted vibrations at 8, 16, 31.5, and 100 Hz.
On/off times of repeated vibrations varied from 10 ms to 5s.
Exposure involved alternating 10-second periods of repeated and continuous vibration.

Main Results:

Subjective magnitude of repeated vibrations decreased with increased off-time and decreased on-time.
Root-mean-square (r.m.s.) values underestimated perceived vibration magnitude.
Root-quadrature-mean (r.m.q.) values overestimated perceived vibration magnitude.

Conclusions:

Human perception of shock-type vibration is influenced by on/off time parameters.
Standard vibration metrics like r.m.s. and r.m.q. do not fully capture human response to repeated vibrations.
Further research is needed to develop better metrics for assessing shock-type vibration effects.