Exercise Physiology
Ensiyeh Yazdkhasti; Farnaz Seifi-Skishahr; Reza Farzizadeh
Abstract
Aims: The purpose of this study was to investigate the effect of Interval resistance training with different intensities on the levels of interleukin-6 (IL-6), tumor necrosis factor-alpha (TNF-α) and neuroglin-4 (NRG-4) in obese men.Methods: In this semi- experimental research, 44 obese men aged ...
Read More
Aims: The purpose of this study was to investigate the effect of Interval resistance training with different intensities on the levels of interleukin-6 (IL-6), tumor necrosis factor-alpha (TNF-α) and neuroglin-4 (NRG-4) in obese men.Methods: In this semi- experimental research, 44 obese men aged 20-30 years old in Tabriz city were selected and divided into 4 control groups, low intensity Interval resistance training with low intensity, medium intensity and high intensity. In the continuation, the subjects of the resistance training group performed their training program for 12 weeks, three sessions a week with 3 different intensities (40% 1RM with 20 repetitions, 60% 1RM with 12 repetitions and 80% 1RM with 20 repetitions) and 48 hours before the first training session and 48 hours after the last resistance training session, the subjects' personal characteristics and serum levels of IL-6, TNF-α and NRG-4 were measured by ELISA. Results: The research findings showed that 12 weeks Interval resistance training decreased serum levels of IL-6 in group with high intensity (P=0.01) and increased serum levels of NRG-4 in exercise groups with different intensities(P=0.001) in obese men, but it had no significant effect on TNF-α levels (P=0.05). The dcrease in IL-6 and increase in neuroglin-4 levels in the high intensity Interval resistance training group (P=0.02) was the most compared to other groups (P=0.02 and P=0.001; respectively). Conclusion: It seems that Interval resistance training with different intensities can improve inflammatory indices and neuroglin-4 in obese people, and this improvement was more prominent in high-intensity resistance training.
Hasan Naghizadeh; kamal Azizbeigi
Abstract
Aim:Obesity is known as an inflammatory systemic indicator of various diseases. The aim of the present study was to investigate the effect of 12 weeks of progressive resistance exercise on serum levels of enzymes aspartate aminotransferase, alkaline phosphatase and alanine aminotransferase in obese men. ...
Read More
Aim:Obesity is known as an inflammatory systemic indicator of various diseases. The aim of the present study was to investigate the effect of 12 weeks of progressive resistance exercise on serum levels of enzymes aspartate aminotransferase, alkaline phosphatase and alanine aminotransferase in obese men. Method:Forty sedentary obese men (BMI=31.07 kg.m2) with age range of 30-45 years were purposefully selected and randomly divided into two groups of 20 participants: progressive resistance exercise and control. The exercise protocol for 12 weeks, was carried out three times a week (First week:15 repetitions -2 rounds -50% 1RM; Twelfth week:12 repetitions -3 rounds -80% 1RM). Blood samples were taken before and 24 hours after the last training session to determine serum concentrations of aspartate aminotransferase, alkaline phosphatase, and alanine aminotransferase. Data were analyzed using independent and dependent t-test at a significance level of α=0.05. Results:The results showed that 12 weeks of progressive resistance training has significant effect on between group changes of aspartate aminotransferase(p=0.003), alkaline phosphatase (p=0.014), alanine aminotransferase(p=0.040) and the ratio of aspartate aminotransferase to alanine aminotransferase(p=0.006) in sedentary obese men. Significant between group changes were observed in muscle strength(p=0.001) and body fat percentage(p=0.038). Progressive resistance training is likely to reduce the concentration of aspartate aminotransferase, alkaline phosphatase, and alanine aminotransferase in the blood of obese obese men by improving body composition, muscle strength, and oxygen consumption. Conclusion:Progressive resistance training, possibly with improved body composition and muscle strength, can decrease the concentration of aspartate aminotransferase, alkaline phosphatase, and alanine aminotransferase in sedentary obese men.
