Adolescents, Insulin-resistant, Obesity
Conditions
Keywords
Obesity, Insulin-resistant, Adolescents, High-intensity interval training
Brief summary
Evaluate the effects of HIT on the cardiorespiratory performance and substrate oxidation of insulin-resistant and insulin-sensitive obese adolescents.
Detailed description
Objective: To evaluate the effect of high-intensity interval training (HIT) on the cardiorespiratory performance and substrate oxidation pattern in insulin-resistant and insulin-sensitive obese adolescents.
Interventions
OTHERGroup Insulin-Resistant
High intensity interval training: 3 to 6 sets of 60-second sprints at 100% of the peak velocity interspersed by a 3-min active recovery period.
OTHERGroup Insulin-Sensitive
High intensity interval training: 3 to 6 sets of 60-second sprints at 100% of the peak velocity interspersed by a 3-min active recovery period.
Sponsors
Faculdade de Ciências Médicas da Santa Casa de São Paulo
Study design
Allocation
NON_RANDOMIZED
Intervention model
PARALLEL
Primary purpose
TREATMENT
Masking
NONE
Eligibility
Sex/Gender
ALL
Age
12 Years to 16 Years
Healthy volunteers
Yes
Inclusion criteria
Criteria Inclusion Criteria: * aged 12-16 years * with a body mass index z-score (zBMI) ≥ + 2SD * puberty stage \> 3 * the boys and girls had to present a minimum physical fitness, according to the International Physical Activity Questionnaire (IPAQ), according to the activity performed during the last week and confirmed this using the peak cardiopulmonary test (VO2).
Exclusion criteria
* individuals undergoing drug treatment for weight control; * indiviudals who had cardiac, orthopedic, respiratory or renal problems, diabetes, uncontrolled hypertension, genetic syndrome or hormonal abnormalities.
Design outcomes
Primary
| Measure | Time frame | Description |
|---|---|---|
| rate of Peak oxygen consumption (VOpeak) | 4 weeks | The cardiopulmonary test protocol for determination the VOpeak (ml/kg/min) included running on a treadmill (Model ATL, Inbrasport Ltda; Brazil) at a speed of 4 km/h with 1 km/h increments every minute until the participant showed exhaustion. We evaluated ventilatory parameters on a gas analyzer (model VO2000; Inbrasport Ltda; Brazil). |
| rate of Intensity at first ventilatory anaerobic threshold (VAT1) | 4 weeks | The cardiopulmonary test protocol included running on a treadmill (Model ATL, Inbrasport Ltda; Brazil) at a speed of 4 km/h with 1 km/h increments every minute until the participant showed exhaustion. We evaluated ventilatory parameters on a gas analyzer (model VO2000; Inbrasport Ltda; Brazil).We determined VAT1 (ml/kg/min) using the V-slope method of Beaver et al. |
| rate of Peak Heart rate | 4 weeks | The cardiopulmonary test protocol included treadmill running (Model ATL, Inbrasport Ltda; Brazil). speed of 4 km / h with increments of 1 km / h every minute until the participant shows exhaustion. |
| rate of carbohydrate oxidation | 4 weeks | The substrate oxidation pattern protocol included treadmill running (Model ATL, Inbrasport Ltda; Brazil),during continuous exercise of submaximal intensity (45 minutes of treadmill running at the intensity of the first ventilatory anaerobic threshold). |
| rate of lipid oxidation | 4 weeks | The substrate oxidation pattern protocol included treadmill running (Model ATL, Inbrasport Ltda; Brazil),during continuous exercise of submaximal intensity (45 minutes of treadmill running at the intensity of the first ventilatory anaerobic threshold). |
Countries
Brazil
Outcome results
None listed