Long- and Short-Term High-Intensity Interval Training on Lipid Profile and Cardiovascular Disorders in Obese Male Adolescents

This study investigated the effects of short-term and long-term periods (8 16 weeks) high-intensity interval training (HIIT) on cardiovascular components, blood lipids, 6-min walking test performance in obese young boys (age = 16.2 ± 0.7) with >34% body fat. The participants were split into two groups: severe obesity (SOG; n 17) moderate (MOG; 16). All performed a cycle ergometer for weeks (3 times per week) HIIT at 100% peak power output ventilatory threshold recovered 50% power. Except BMI, both groups improved all composition measures after weeks, higher percentage change (Δ) SOG. increased (p < 0.001). Furthermore, variables, lactate concentration rest 5-min post-exercise, insulin concentrations significantly groups. After MOG HRpeak, glucose concentration, rating perceived exertion (RPE), but was SOG other variables. showed waist-to-hip ratio, maximum heart rate, resting systolic pressure, triglyceride 8 training. In conclusion, program appears to be an appropriate approach extra However, considering RPE values, short-duration sessions should planned.