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Impact of Obesity on Cardiac Autonomic System Functioning in Military Police Officers
Thabata Chaves Pereira Lima1,2, Igor Rezende Trevisan3, Fernanda Monma1,4
1Department of Research and Development of Institutional Projects, School of Physical Education of the Military Police of the State of Sao Paulo, Sao Paulo, SP, Brazil.
Insights
Obesity negatively impacts cardiac autonomic modulation in male military police officers, regardless of physical activity levels. This autonomic dysfunction is linked to cardiovascular disease risks in this occupational group.
Area of Science:
- Cardiology
- Occupational Health
- Autonomic Nervous System
Background:
- Obesity is a risk factor for cardiovascular diseases (CVD).
- Military police face occupational and traditional CVD risk factors.
- Cardiovascular health data in military police is limited.
Purpose of the Study:
- To examine obesity's effect on cardiac autonomic modulation.
- To assess obesity's impact on hemodynamic profiles.
- Focus on male active-duty military police officers.
Main Methods:
- Cross-sectional study design.
- Body composition assessed via octapolar bioimpedance.
- Cardiac autonomic modulation evaluated using heart rate variability (HRV).
- Hemodynamic parameters measured by oscillometric method.
- Physical activity assessed using the International Physical Activity Questionnaire (IPAQ).
Main Results:
- 102 military police officers participated.
- Obese officers showed impaired cardiac autonomic modulation (time, frequency, non-linear domains) compared to non-obese.
- Higher physical activity did not mitigate autonomic impairment in obese officers.
- No significant differences in hemodynamic profiles between obese and non-obese groups.
Conclusions:
- Obesity is negatively associated with cardiac autonomic modulation in military police.
- Increased physical activity does not normalize autonomic function in obese military police.
- Autonomic dysfunction in obese military police warrants further investigation for CVD prevention.
Introduction:
Cardiac autonomic system functioning may be altered by obesity leading to cardiovascular diseases and associated complications. Military police officers are exposed to traditional and occupational risk factors for the development of CVD, however data on the cardiovascular health in this population is still scarce.
Aim:
In this cross-sectional study, we investigated the impact of obesity on cardiac autonomic modulation and the hemodynamic profile in male active-duty military police officers.
Methods:
The body composition of the volunteers was assessed by octapolar electrical bioimpedance. Participants were classified as non-obese or obese in accordance with their body fat, with further subgroups as physically active obese or insufficiently active obese using International Physical Activity Questionnaire (IPAQ). Cardiac autonomic modulation was assessed by heart rate variability and the automatic oscillometric method allowed us to assess hemodynamic features.
Results:
102 military police officers from the state of São Paulo participated in the study. Cardiac autonomic modulation revealed significant impairment in time and frequency domains and non-linear methods in the obese group compared to the non-obese (p < 0.05). A higher physical activity level did not alter these results in the obese group. However, no significant differences in the hemodynamic profile were observed between groups (p > 0.05).
Conclusion:
These findings suggest a negative association between obesity and cardiac autonomic modulation in military police officers, unaffected by increased physical activity.
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