Key result
Cardiorespiratory fitness and high-intensity activity correlate with resting heart rate variability in male firefighters.
Why the study?
The study aimed to measure the association between physical activity levels, cardiorespiratory fitness, and resting cardiac autonomic function in firefighters at the fire station.
Are physical activity levels and cardiorespiratory fitness associated with resting cardiac autonomic function in firefighters?
Cross-Sectional (n=98)
Are physical activity levels and cardiorespiratory fitness associated with resting cardiac autonomic function in firefighters?
Higher cardiorespiratory fitness and high-intensity physical activity are associated with improved resting cardiac autonomic function in firefighters.
Answers are grounded in this paper and cite their sources.
Associated with better autonomic function in firefighters; leaves open whether fitness interventions improve clinical outcomes.
OBJECTIVE: The aim of the study is to measure the association between the physical activity (PA) levels and cardiorespiratory fitness on the firefighters' cardiac autonomic function at rest at the fire station. METHODS: Anthropometry, heart rate variability, fitness, and PA levels were assessed at the fire station in 98 career Québec male firefighters. RESULTS: Partial correlations, adjusted for age, waist circumference, and perceived stress revealed that heart rate and several heart rate variability indices were significantly correlated to estimated maximal oxygen consumption and to high-intensity PA but not to moderate-intensity PA. CONCLUSIONS: These results suggest that both cardiorespiratory fitness and high-intensity physical training are related to the cardiac autonomic function of firefighters. Therefore, fire department should promote PA programs to improve physical fitness among firefighters.
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Marcel‐Millet et al. (2024) conducted a cross-sectional in Healthy (Firefighters) (n=98). Physical activity levels and cardiorespiratory fitness was evaluated on Cardiac autonomic function (heart rate variability indices) at rest. Cardiorespiratory fitness and high-intensity physical activity were significantly correlated with resting heart rate variability indices in male firefighters.
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