Relationship of the Physical Activity Practice and Its Different Domains With Cardiac Autonomic Modulation

Study Overview
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Brief Summary
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Overall objective: To analyze the relationship of the physical activity practice measured directly with the autonomic cardiac modulation in adults. Specific objectives: i) to verify through the Baecke questionnaire whether the different domains of physical activity (work, leisure and occupational activities) are related in the same way to the autonomic cardiac modulation; ii) Analyze whether high blood pressure and resting heart rate values are related to poor cardiac autonomic modulation regardless of nutritional status.

Detailed Description
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Cardiovascular disease is a major public health problem and has contributed to a high mortality rate in the adult population. One of the precursors of these diseases is low cardiac autonomic modulation. Thus, factors that may be related to greater cardiac autonomic modulation should be investigated with the aim of preventing cardiovascular diseases. One of these factors that may contribute to increases in cardiac autonomic modulation is the practice of physical activity. However, the studies investigating this relationship have been controversial, generally evaluating the practice of physical activity in a subjective way, and there is no clarity as to whether the different domains of physical activity would be related differently to cardiac autonomic modulation. Overall objective: To analyze the relationship of the physical activity practice measured directly with the autonomic cardiac modulation in adults. Specific objectives: i) to verify through the Baecke questionnaire whether the different domains of physical activity (work, leisure and occupational activities) are related in the same way to the autonomic cardiac modulation; ii) Analyze whether high blood pressure and resting heart rate values are related to poor cardiac autonomic modulation regardless of nutritional status. Implications: The results of this study will contribute to clarify the relationship between physical activity practice and cardiac autonomic modulation considering a large sample of subjects (n = 252), as well as whether the different domains of physical activity are related to autonomic modulation cardiac. These results may help in the elaboration of health promotion strategies.

Official Title
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Relationship of the Intensity of Physical Activity Practice and Its Different Domains With Cardiac Autonomic Modulation in Adult Individuals

Conditions
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Adult Disease

Participation Criteria
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Eligibility Criteria
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Inclusion Criteria: 18 years or older be resident of the city of Anastácio-SP (Brazil) sign the informed consent form Exclusion Criteria: use less than 5 valid accelerometer days present an error in heart rate variability greater than 5%

Ages Eligible for Study
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Minimum Age: 18 Years

Sexes Eligible for Study
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All

Accepts Healthy Volunteers
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Accepts Healthy Volunteers

Study Plan
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How is the study designed?
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What is the study measuring?
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Primary Outcome Measures

| Outcome Measure | Measure Description | Time Frame |
| --- | --- | --- |
| Cardiac autonomic modulation | The heart rate variability will be collected by means of the POLAR V800. | through study completion, an average of 1 year | 
| Physical activity level - objective measure | Will be collected 7 days of accelerometry by ActiGraph's triaxial accelerometer wGT3X-BT giving the measure in counts per minute. | through study completion, an average of 1 year | 

Secondary Outcome Measures

| Outcome Measure | Measure Description | Time Frame |
| --- | --- | --- |
| Self-reported physical activity level questionnaire | Physical activity in different domains will be evaluated by the Baecke et al. (1982). This instrument evaluates the practice of physical activity through 16 questions in the last twelve months, considering the physical effort at work, the practice of sports activities or systematized exercises in leisure and leisure activities. At the end, this instrument offers a dimensionless score for each of the domains and the sum of the score of the three domains also determines the total amount of physical activity practiced by each of the evaluated individuals. | through study completion, an average of 1 year | 
| Systolic Blood pressure | The systolic blood pressure will be measured by means of the omron digital oscillometric device. | through study completion, an average of 1 year | 
| Diastolic Blood pressure | The diastolic blood pressure will be measured by means of the omron digital oscillometric device. | through study completion, an average of 1 year | 
| Self-reported practice of physical activity in childhood and adolescence | To evaluate the practice of physical activity in childhood (age 7 to 10 years) and adolescence (11-17 years) two questions will be asked: if they practiced some kind of sport in these phases of life with supervision of a teacher, with two alternatives of answer: yes or no. | through study completion, an average of 1 year | 
| Resting Heart Rate | The resting heart rate will be measured by means of the omron digital oscillometric device. | through study completion, an average of 1 year | 
| Body Mass | Individuals will be evaluated barefoot wearing light clothing. Body mass will be measured by means of a digital scale (Plenna, Brazil) | through study completion, an average of 1 year | 
| Height | Individuals will be evaluated barefoot wearing light clothing. The height will be evaluated by a fixed stadiometer on the wall. | through study completion, an average of 1 year | 
| Body Mass Index | The body mass index (BMI) will be calculated by dividing the body mass by the square of the height. Individuals classified up to 24.99 kg/m² will be considered as normal weight, those classified as having a BMI varying from 25.00 kg/m² up to 29.99 kg/m² will be classified as overweight and those with BMI ≥ 30 kg/m² as obese. | through study completion, an average of 1 year | 
| Waist Circumference | The waist circumference will be evaluated by an inextensible tape (Sanny, Brazil) and will consider the smallest circumference between the last rib and the iliac crest. Abdominal obesity will be considered in men with waist circumference ≥102 cm and women at 88 cm, following the recommendations of the World Health Organization (WHO, 1997). | through study completion, an average of 1 year | 

 Terms related to the study
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Keywords Provided by Centre Hospitalier Valida
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Physical Activity, Cardiovascular Health, Epidemiological