Key result
A meta-analysis of 12 studies found inconsistent effects of 24-h shift work on autonomic function, with only 3 of 9 studies showing a significant increase in LF/HF ratio after a 24-h shift.
Why the study?
The study was conducted to examine the effect of 24-h shift work on autonomic nervous system function using heart rate variability methodologies.
Does 24-h shift work affect autonomic function as measured by heart rate variability in occupational settings?
Population
12 studies with sample sizes varying from eight to 60 participants
Comparison
24-h shift work vs baseline or non-shift periods
Design
Systematic review and meta-analysis
Authors
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Inconsistent evidence precludes firm conclusions on autonomic effects of 24-h shifts; leaves open need for standardized HRV studies.
Meta-Analysis
Does 24-h shift work affect autonomic function as measured by heart rate variability in occupational settings?
Extended 24-hour shift work may lead to a shift away from parasympathetic dominance, though current evidence is inconsistent due to methodological variations.
Jelmini et al. (2023) conducted a meta-analysis in 24-h shift work. 24-h shift work vs. Baseline or non-shift work was evaluated on Autonomic nervous system function via heart rate variability (HRV). A meta-analysis of 12 studies found inconsistent effects of 24-h shift work on autonomic function, with only 3 of 9 studies showing a significant increase in LF/HF ratio after a 24-h shift.
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