Key result
Physical activity, cardiorespiratory fitness, and body composition were significantly associated with HRV-based levels of stress and recovery on workdays, accounting for 27.5% of the variance in total stress.
Why the study?
Do physical activity, cardiorespiratory fitness, and body composition associate with HRV-based indicators of stress and recovery on workdays in healthy males?
Cross-Sectional (n=81)
Do physical activity, cardiorespiratory fitness, and body composition associate with HRV-based indicators of stress and recovery on workdays in healthy males?
Effect estimate: 27.5% of variance
p-value: p=0.001
Higher physical activity, better cardiorespiratory fitness, and lower body fat percentage are associated with reduced objective HRV-based stress and improved recovery on workdays in healthy men.
Higher PA/CRF and lower fat linked to better workday HRV recovery in men; leaves open causal role in occupational stress prevention.
BACKGROUND: The purpose of this study was to investigate how physical activity (PA), cardiorespiratory fitness (CRF), and body composition are associated with heart rate variability (HRV)-based indicators of stress and recovery on workdays. Additionally, we evaluated the association of objectively measured stress with self-reported burnout symptoms. METHODS: Participants of this cross-sectional study were 81 healthy males (age range 26-40 y). Stress and recovery on workdays were measured objectively based on HRV recordings. CRF and anthropometry were assessed in laboratory conditions. The level of PA was based on a detailed PA interview (MET index [MET-h/d]) and self-reported activity class. RESULTS: PA, CRF, and body composition were significantly associated with levels of stress and recovery on workdays. MET index (P < 0.001), activity class (P = 0.001), and CRF (P = 0.019) were negatively associated with stress during working hours whereas body fat percentage (P = 0.005) was positively associated. Overall, 27.5% of the variance of total stress on workdays (P = 0.001) was accounted for by PA, CRF, and body composition. Body fat percentage and body mass index were negatively associated with night-time recovery whereas CRF was positively associated. Objective work stress was associated (P = 0.003) with subjective burnout symptoms. CONCLUSIONS: PA, CRF, and body composition are associated with HRV-based stress and recovery levels, which needs to be taken into account in the measurement, prevention, and treatment of work-related stress. The HRV-based method used to determine work-related stress and recovery was associated with self-reported burnout symptoms, but more research on the clinical importance of the methodology is needed.
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Teisala et al. (2014) conducted a cross-sectional in Healthy (n=81). Physical activity, cardiorespiratory fitness, and body composition was evaluated on Variance of total stress on workdays (27.5% of variance, p=0.001). Physical activity, cardiorespiratory fitness, and body composition were significantly associated with HRV-based levels of stress and recovery on workdays, accounting for 27.5% of the variance in total stress.
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