physical activity, cardiovascular diseases, smartphone
Conditions
Interventions
Initially, a pilot with 42 participants will be performed for a subsequent sample calculation according to the study outcomes. The sample size was registered with 210 participants as an estimate accor
Other
Sponsors
Universidade Federal de São Paulo
Laboratório de Epidemiologia e Movimento Humano - EPIMOV
Eligibility
Age
20 Years to 100 Years
Inclusion criteria
Inclusion criteria: Age over 20 years old, without diagnosed cardiorespiratory diseases, musculoskeletal limitations, electrocardiographic abnormalities, or other conditions that preclude the safe practice of physical activity, has to own a smartphone and be familiar with the use of the device.
Exclusion criteria
Exclusion criteria: Basal average level of physical activity >= 10,000 steps per use of walking aids, recent respiratory infections, spirometric abnormalities, stable or unstable angina on the 4 weeks prior to evaluation, recent myocardial infarction, history of angioplasty or heart surgery, bradycardia or tachycardia, and refuse to participate by signing the informed consent.
Design outcomes
Primary
| Measure | Time frame |
|---|---|
| Change in the average number of steps per day compared to the baseline assessment, using a triaxial accelerometer for seven days. The assessment will take place before intervention, at the end of intervention and after 3 months of the end of intervention. | — |
Secondary
| Measure | Time frame |
|---|---|
| Change in cardiometabolic and cardiovascular health, assessed by resting blood pressure (3 measurements with a 1-minute interval between them); resting heart rate variability for 10 minutes; blood tests (analysis of total cholesterol, HDL cholesterol, LDL cholesterol, triglycerides and glycemia); anthropometric measures (height measured by stadiometer, body mass evaluated by digital weight balance, and abdominal circumference measured with measuring tape); and score of ideal cardiovascular health, which scores blood pressure measurements, self-report of physical activity, diet, BMI, smoking status and glycemia. The assessment will take place before intervention, at the end of intervention and after 3 months of the end of intervention.;Change in lung function assessed by spirometry, and recorded values of forced expiratory volume in the first second (FEV1), forced vital capacity (FVC), FEV1/FVC ratio, and maximum voluntary ventilation (MVV). The assessment will take place before intervention, at the end of intervention and after 3 months of the end of intervention.;Change in cardiopulmonary fitness, assessed by cardiopulmonary exercise test and recorded values of maximum heart rate, minute volume, gas exchange rate, oxygen uptake, carbon dioxide production, and the relationships between these parameters. The assessment will take place before intervention, at the end of intervention and after 3 months of the end of intervention.;Identification of barriers and facilitators to increase the level of physical activity, by questioning participants about the difficulties and facilitators they considered determinants for adherence to the proposed intervention. The assessment will take place at the end of intervention.;Change in body composition, assessed by bioelectrical impedance. There will be computed the resistance and reactance, lean body mass and percentage of body fat. The assessment will take place before intervention, at the end of intervention and after 3 months of | — |
Countries
Brazil
Contacts
Public ContactMaria do Socorro;Victor Simões;Dourado
Laboratório de Epidemiologia e Movimento Humano - EPIMOV;Universidade Federal de São Paulo
Outcome results
None listed