In summary, a five-minute VR nature microbreak delivered during work shifts produced meaningful, immediate enhancements in positive mood and a small trend toward increased parasympathetic activity.
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Acute Effects of a Five-Minute Virtual Reality Nature Microbreak on Autonomic Function and Mood in Healthcare Workers.
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The sentences
Several factors may explain why HRV changes did not reach statistical significance: (i) the small sample size of 17 limited statistical power; (ii) a five-minute intervention may be too brief to overcome large inter-individual variance in HRV; and (iii) breathing depth and thoracic movement were not monitored, although respiratory rate was fixed.