ABSTRACT
Purpose@#Nonalcoholic fatty liver disease (NAFLD) is the most frequent cause of chronic liver diseases in both adults and children with obesity. The aim of this study was to compare the changes in liver enzymes and metabolic profile in adolescents with fatty liver following selected school-based exercise (SBE) and high-intensity interval training (HIIT) interventions. @*Methods@#In a semi-experimental study, 34 obese male adolescents with clinically defined NAFLD were divided into the HIIT (n=11, age=12.81±1.02 years, body mass index [BMI]=26.68 ±2.32 kg/㎡ ), selected SBE (n=11, age=13.39±0.95 years, BMI=26.47±1.74 kg/㎡), and control (n=12, age=13.14±1.49 years, BMI=26.45±2.21 kg/㎡ ) groups. The ultrasonography NAFLD grade, peak oxygen uptake (VO 2peak ), lipid profile, insulin resistance, and alanine aminotransferase (ALT) and aspartate aminotransferase (AST) levels of the participants were measured before and after the exercise interventions. @*Results@#The BMI, waist-to-hip ratio, and body fat percentage of the participants decreased, and a significant increase in VO 2peak was observed after the intervention; however, the HIIT group showed a significant improvement compared with the SBE group (p0.01). @*Conclusion@#HIIT and SBE are equally effective in improving health parameters in obese children and adolescents.
ABSTRACT
Purpose@#Nonalcoholic fatty liver disease (NAFLD) is the most frequent cause of chronic liver diseases in both adults and children with obesity. The aim of this study was to compare the changes in liver enzymes and metabolic profile in adolescents with fatty liver following selected school-based exercise (SBE) and high-intensity interval training (HIIT) interventions. @*Methods@#In a semi-experimental study, 34 obese male adolescents with clinically defined NAFLD were divided into the HIIT (n=11, age=12.81±1.02 years, body mass index [BMI]=26.68 ±2.32 kg/㎡ ), selected SBE (n=11, age=13.39±0.95 years, BMI=26.47±1.74 kg/㎡), and control (n=12, age=13.14±1.49 years, BMI=26.45±2.21 kg/㎡ ) groups. The ultrasonography NAFLD grade, peak oxygen uptake (VO 2peak ), lipid profile, insulin resistance, and alanine aminotransferase (ALT) and aspartate aminotransferase (AST) levels of the participants were measured before and after the exercise interventions. @*Results@#The BMI, waist-to-hip ratio, and body fat percentage of the participants decreased, and a significant increase in VO 2peak was observed after the intervention; however, the HIIT group showed a significant improvement compared with the SBE group (p0.01). @*Conclusion@#HIIT and SBE are equally effective in improving health parameters in obese children and adolescents.
ABSTRACT
The purpose of the present study was to evaluate the effects of six-week aerobic training program including running and rope skipping on cardiovascular fitness, body mass index [BMI], and mental health among female students at the University of Isfahan, Iran. In this interventional study we included 30 female students in academic year 2011-12. The participants were randomly assigned in experimental group [n=15, mean +/- SD for age=26.06 +/- 1.18, weight [kg]=57.43 +/- 5.67, height [cm]=160.06 +/- 4.16] and control group [n=15, mean +/- SD for age=26.33 +/- 1.30, weight=57.66 +/- 5.08, height=161.86 +/- 3.29]. Pre-test and post-test measurements include VO2 max with Queen Step test; BMI and General Health Questionnaire-28 as a measure of mental health were done. Analysis of covariance [ANCOVA] was used to test the effects of aerobic training as intervention [P<0.05]. There was statistically significance difference between experimental and control groups after adjustment for their own baseline values concerning cardiovascular fitness [P=0.004], BMI [P<0.001] and mental health indices [P<0.001]. A six-week aerobic practice improves cardiovascular strength, mental health and BMI considerably and could be more encouraged at universities