Abstract
This study aimed to analyze the relationship of physical activity in different domains with cardiac autonomic modulation in adults. A sample of 252 adults was randomly selected, with mean age of 42.1 (± 16.5) years, being 58% of women. Cardiac autonomic modulation was assessed through indexes of heart rate variability in time (SDNN, RMSSD) and frequency (LF, HF) domains for linear method, and by Poincaré plot for non-linear method (SD1, SD2 components). Domains of PA (occupation, sport, leisure time/commuting, and total) were assessed by Baecke’s questionnaire. Variables of age, gender, socioeconomic status (questionnaire) and body mass index (objectively measures) were covariates. Occupational PA was positively related to LF (β = 2.39, 95% CI 0.24; 4.54), sports PA was positively related to SDNN (β = 3.26, 95% CI 0.18; 7.05), RMSSD (β = 4.07, 95% CI 0.31; 7.85), and SD1 (β = 2.85, 95% CI 0.11; 5.81), and leisure time/commuting PA was positively related to SDNN (β = 3.36, 95% CI 0.28; 6.70) and RMSSD (β = 3.53, 95% CI 0.46; 7.52) indexes. Total PA was related to RMSSD (β = 1.70, 95% CI 0.04; 3.72). Sports, leisure time/commuting, and total PA were related to higher parasympathetic modulation, while occupational PA was related to higher sympathetic modulation to the heart in adults.
Highlights
The cardiac autonomic modulation reflects the sympathetic and vagal activity for the heart
Different domains of physical activity have been differently associated to cardiovascular health and mortality[8,9,10], besides other health indicators, as quality of life, where leisure time PA has been associated to better quality of life and occupational PA does not a ssociate[11]
This study aimed to investigate the hypothesis that leisure time, sport, and occupational domains of physical activity are differently related with cardiac autonomic modulation indicators in adults, regardless of gender, age, socioeconomic condition, and body mass index
Summary
The cardiac autonomic modulation reflects the sympathetic and vagal activity for the heart. Different domains of physical activity have been differently associated to cardiovascular health and mortality[8,9,10], besides other health indicators, as quality of life, where leisure time PA has been associated to better quality of life and occupational PA does not a ssociate[11]. It was reported opposing effects of leisure time and occupational PA in global health of adult population, resulting in a health paradox[12]. This study aimed to investigate the hypothesis that leisure time, sport, and occupational domains of physical activity are differently related with cardiac autonomic modulation indicators in adults, regardless of gender, age, socioeconomic condition, and body mass index
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