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Updated: Jun 12, 2026

A Method for Evaluating Timeliness and Accuracy of Volitional Motor Responses to Vibrotactile Stimuli
Published on: August 2, 2016
Characterization of frequency-dependent responses of the vascular system to repetitive vibration
Kristine Krajnak1, G Roger Miller, Stacey Waugh
1Engineering and Controls Technology Branch, National Institute for Occupational Safety and Health, Health Effects Laboratory Division, Morgantown, WV 26505, USA. ksk1@cdc.gov
Objective:
The current frequency weighting proposed in the International Standards Organization-5349 standard may underestimate the risk of injury associated with exposure to vibration >100 Hz. The goal of this study was to assess the frequency-dependent responses of the peripheral vascular system to repeated bouts of vibration.
Methods:
The effects of exposure to vibration at 62.5, 125, or 250 Hz (constant acceleration of 49 m/s2) on vascular morphology, oxidative stress, inflammation, and gene expression were examined in the ventral tail artery of rats.
Results:
Vascular responses indicative of dysfunction (eg, remodeling and oxidative activity) became more pronounced as the frequency of the exposure increased.
Conclusion:
Exposure to vibration frequencies that induce the greatest stress and strain on the tail (ie, >100 Hz) result in vascular changes indicative of dysfunction.
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