HIT in Insulin-resistant and Insulin-sensitive Obese Adolescents

Effects of High-intensity Interval Training on Cardiorespiratory Performance and Substrate Oxidation in Insulin-resistant and Insulin-sensitive Obese Adolescents: A Before-and-after Clinical Study

Evaluate the effects of HIT on the cardiorespiratory performance and substrate oxidation of insulin-resistant and insulin-sensitive obese adolescents.

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.

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.