Exercise Physiology
mina shakhi; Aboalhamid habibi; aliakbar alizadeh
Abstract
Introduction and purpose: The purpose of this research is to investigate the effect of exercise (resistance-aerobic) on the levels of IGFBP3, IGF1, and BMI in obese wome .Materials and methods: For this purpose, 24 inactive obese women aged 25 to 37 years with a BMI of 30 to 35 kg/m2 were randomly divided ...
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Introduction and purpose: The purpose of this research is to investigate the effect of exercise (resistance-aerobic) on the levels of IGFBP3, IGF1, and BMI in obese wome .Materials and methods: For this purpose, 24 inactive obese women aged 25 to 37 years with a BMI of 30 to 35 kg/m2 were randomly divided into two groups of 12 people, training and control. The selected exercise included resistance training with weights and a special bodybuilding machine with an intensity of 67 to 80% of the maximum strength and aerobic exercise with a stationary bike and an intensity of 60 to 85% of the maximum heart rate, for 8 weeks and 3 days a week. Body composition measurements were taken 24 hours before and 24 hours after exercise. For statistical analysis in the findings section, one-way analysis of covariance test was used to examine inter-group changes. Findings: The results of this study showed that after eight weeks of resistance and aerobic training, a significant decrease in the BMI of subjects in the training group was observed compared to the control group (P<0.001). Also, the results of analysis of covariance showed that after eight weeks of selected training (resistance-aerobic) the two indexes of IGFBP3 and IGF1 in the training group decreased significantly compared to the control group (P<0.001 and P<0.006, respectively). Conclusion: According to the results of this research, both resistance and aerobic training methods can be used to reduce weight, BMI, IGFBP3 and IGF1.
Hamid Rajabi; Ehsan Soleymani Far; Shirin Hasani Ranjbar; Ramin Heshmat
Volume 1, Issue 1 , April 2011, , Pages 61-78
Abstract
AbstractAim: This study aimed to investigate the effects of intense resistance exercise on IGF-1 system and monitoring time course of changes in its components.Method: Nineteen healthy physical education students as trained group (age 22.21±1.44 years, height 178.41±6.39 cm, weight 73.47±7.86 kg) ...
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AbstractAim: This study aimed to investigate the effects of intense resistance exercise on IGF-1 system and monitoring time course of changes in its components.Method: Nineteen healthy physical education students as trained group (age 22.21±1.44 years, height 178.41±6.39 cm, weight 73.47±7.86 kg) and fifteen healthy nonphysical education students as untrained group (age 23.07±1.91 years, height 174.02±5.08 cm, weight 70.47±10.13 kg) volunteered to participate in this study and each group were randomly divided into two experimental and control groups. Experimental groups performed one session of resistance exercise with 70-80% 1RM. Blood sampling was done 4 times, 2-hours after breakfast (Pre-test), immediately (T2), 4- (T3) and 7-hours after the exercise (T4). Blood samples were analyzed by RIA method. Two-way repeated measure (ANOVA), Friedman and Kruskal-Walis tests were used to analyze data.Results: One session of resistance exercise was associated with a significant increase in GH at T2 (P
