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Document ID (ISN)112004
CIS number 11-0660
ISSN - Serial title 1232-1087 - International Journal of Occupational Medicine and Environmental Health
Year 2010
Convention or series no.
Author(s) Collins S., Karasek R.
Title Reduced vagal cardiac control variance in exhausted and high strain job subjects
Bibliographic information 3rd quarter 2010, Vol.23, No.3, p.267-278. Illus. 26 ref.
Internet access Reduced_vagal_cardiac_control.pdf [in English]
Abstract The objectives of this study were to propose methodological strategies for analyzing vagal cardiac control based on the Stress Disequilibrium Theory (SDT) using high frequency power of heart rate variability (HFP) and short term variance of HFP, as well as to provide evidence of reduced vagal cardiac control range and variability in high strain job and exhausted subjects. Job strain was measured using the Job Content Questionnaire, diary reports and a standardized occupational code linkage in 36 healthy mid-aged males with varying strain jobs. Subjects were Holter-monitored for 48 hours, including a work and rest day. Comparisons were made between 10 high and 22 low job strain jobs. Furthermore, four subjects categorized as exhausted were analyzed separately. Findings support the hypothesis that job strain is associated with reductions in cardiac vagal variance, and that reduced system variability may be a characteristic of exhaustion.
Descriptors (primary) neurovegetative disorders; psychology of work organization; heart rate monitoring; stress factors
Descriptors (secondary) fatigue; questionnaire survey; neuropsychic stress; neuropsychic effects
Document type D - Periodical articles
Subject(s) Occupational pathology
Broad subject area(s) Occupational medicine, epidemiology
Browse category(ies) Psychology of work organization
Cardiovascular diseases
Mental stress and burnout