Heart Rate Variability in Response to Psychological Test in Hand-Arm Vibration Syndrome Patients Assessed by Frequency Domain Analysis

To investigate heart rate variability in response to psychological tests (Japanese version of Stroop color word test and mirror drawing test) in 29 hand-arm vibration syndrome (HAVS) patients, 16 of them with vibration-induced white finger (VWF) and 13 without VWF, and 10 healthy controls of similar...

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Bibliographic Details
Published in:Industrial Health 1999, Vol.37(4), pp.382-389
Main Authors: LASKAR, Md Shawkatuzzaman, IWAMOTO, Mieko, TOIBANA, Norikuni, MORIE, Takako, WAKUI, Tadaaki, HARADA, Noriaki
Format: Article
Language:English
Subjects:
Aged
Arm - physiology
Female
Frequency domain analysis
Hand - physiology
Hand-arm vibration syndrome
Heart Rate - physiology
Heart rate variability
Humans
Male
Mental Status Schedule
Middle Aged
Occupational Diseases
Psychological test
Sympathetic Nervous System - physiology
Sympathovagal balance
Syndrome
Vagus Nerve - physiology
Vibration - adverse effects
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Summary:To investigate heart rate variability in response to psychological tests (Japanese version of Stroop color word test and mirror drawing test) in 29 hand-arm vibration syndrome (HAVS) patients, 16 of them with vibration-induced white finger (VWF) and 13 without VWF, and 10 healthy controls of similar age, heart rate variability during spontaneous and deep (6 cycles a minute) breathing in supine position before and after exposure to the psychological tests was examined calculating frequency domain components such as low frequency (LF) power-index of both the sympathetic and parasympathetic activity, high frequency (HF) power-index of the parasympathetic activity and LF/HF-index of the sympathovagal balance. The group of all patients and the group without VWF indicated significant increase in LF/HF in the deep breathing measurement after exposure to the psychological tests. The result suggests that the sympathetic tone in the sympathovagal balance predominated in the HAVS patients which means that they had larger sensitivity of the sympathetic nervous system to the psychological tests.
ISSN:0019-8366
1880-8026
DOI:10.2486/indhealth.37.382