Nahid Bijeh; Hasan Faraji; Babisan Askari; Asra Askari; Saeid Ramezani
Volume 5, Issue 1 , June 2015, , Pages 11-21
Abstract
Aim: The purpose of this study was to examine the response of the visfatin to acute endurance exercise pre and post 8-weeks trainingin untrained obese healthy men. Method: Twenty two subjects (age 29.06±3.83 years, weight 90.96±4.68 kg, height 171.3±4.88 cm, and BMI 30.76±1.8 ...
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Aim: The purpose of this study was to examine the response of the visfatin to acute endurance exercise pre and post 8-weeks trainingin untrained obese healthy men. Method: Twenty two subjects (age 29.06±3.83 years, weight 90.96±4.68 kg, height 171.3±4.88 cm, and BMI 30.76±1.8 kg/m2) were volunteered to participate in the current study. The subjects were divided randomly into two experimental (n=11) and control (n=11) groups. Experimental group participated in 8-week endurance training program three times per week. Exercise intensity increased from 60 percent of maximum heart rate to 65 to 70 percent after 4thweeks until the end of training program. Acute exercise test (cycle ergometer exercise, 30 min at 60 percent of maximum heart rate) were employed before and after training period. Blood samples were collected before, immediately, and 30 min after acute exercise at before and after endurance training period to measure plasma visfatin variations. Results: The results by two-way Anova with analysis showed before training period, visfation levels changes were not sigificant after acute exercise , immediately and 30 min aftery in both groups. Conclusion: These data indicate that endurance training is associated with decrease in resting plasma visfatin and body fat in obese men. Moreover, one bout of endurance training can decrease the plasma visfatin in response to acute exercise.
Ali Reza Safarzade; Fahimeh Shafiee; Elaheh Talebi-Garakani; Rozita Fathi
Volume 4, Issue 1 , May 2014, , Pages 27-38
Abstract
Aim: The purpose of this study was to investigate the effects of aerobic exercise training on plasma vaspin concentration and insulin resistance index in sedentary overweight women. Methods: Twenty six sedentary overweight women (aged: 43.1 ± 12.6 year, weight: 73.4 ± 10.0 kg, BMI: 29.1 ...
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Aim: The purpose of this study was to investigate the effects of aerobic exercise training on plasma vaspin concentration and insulin resistance index in sedentary overweight women. Methods: Twenty six sedentary overweight women (aged: 43.1 ± 12.6 year, weight: 73.4 ± 10.0 kg, BMI: 29.1 ± 3.2 kg/m2) voluntarily participated in an 8-weeks aerobic exercise training program included running with 40- 80% reserve heart rate, 20- 45 min/day. Anthropometric and metabolic parameters in addition to plasma vaspin concentration were measured at baseline and after 8 weeks of the training program. To compare changes in variables according to body composition alterations, we divided the subjects into responders (defined as participants who lost ≥1% of baseline body fat percentage), and non-responders (defined as participants with no change or <1% reduction in body fat percentage). Results: After 8 weeks of aerobic exercise training we did not find any significant changes in plasma vaspin concentration. Nevertheless, body weight and body fat percentage decreased significantly (P≤0.05) and plasma vaspin concentrations increased significantly (P≤0.05) in responders, but not in non-responders. Changes in plasma vaspin concentrations were significantly correlated with changes in plasma insulin and glucose levels, and insulin resistance index (HOMA-IR) only in non-responders. Conclusions: This study indicated that reduction in body fat percentage induced by aerobic exercise training could be an effective factor to increase plasma vaspin levels in sedentary overweight women.
