مرکز منطقه ای اطلاع رسانی علوم و فناوری Journal of Sports Physiology and Athletic Conditioning 2783-3038 1 1 2021 8 19 High Intensity Interval Training on Adiponectin And ALT, AST, ALP Enzymes In obese And Overweight Boys High Intensity Interval Training on Adiponectin And ALT, AST, ALP Enzymes In obese And Overweight Boys 67 74 10.61186/jspac.21116.1.1.67 en Elhamalsadat Zeinali Saeed Ganjizadeh Tari Masoumeh Hehalizadeh 2021 7 28 Background: This study was conducted to evaluate the effect of eight weeks of High-Intensity Interval Training (HIIT) on adiponectin and AST, ALT, and ALP enzymes in obese and overweight boys. Materials and Methods: Subjects were 22 boys aged 12-14 years old, who were randomly assigned to experimental and control groups. Experimental group: mean weight 80.08 ± 16.08, Vo2max was 36.56 ± 2.49, and BMI was 30.27 ± 5.9 and control group: mean weight 67.91 ± 7.95, and Vo2max was 44.4 ± 2.75, 38 and BMI of 60.26 ± 6.3. The experimental group performed eight weeks of HIIT training with 80% HRR intensity at 10 turns of 60 seconds, with 60 seconds rest on exercise bikes for 3 days a week. Blood samples were taken 24 and 48 hours before and after the training, ANCOVA was used for data analysis using SPSS 21 software at a significant level (p <0.05). Results: The results showed that HIIT reduced the levels of Adiponectin and AST and ALP enzymes, but this was not significant (P≥0.05). This exercise also reduced ALT and fat percentage and increased Vo2max in subjects, with changes in all three variables significant (P≤0 / 05). Conclusion: It seems HIIT can reduce the percentage of fat and ALT enzyme in children, which can help prevent many metabolic diseases. Also, HIIT can play a role in liver health in overweight and obese children. http://jspac.etb.iau.ir/en/Article/Download/21116