Exercise Physiology
Zohreh Shanazari; Mohammad Faramarzi; ZAHRA HEMATI FARSANI; Mohammad Soleimani
Abstract
Introduction: Body weight is adjusted through the balance between receiving food and energy. The ghrelin hormone increases appetite and food intake. The aim of this study was to examine the order effect of combined training on ghrelin levels and energy expenditure in overweight women. Methods: 30 overweight ...
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Introduction: Body weight is adjusted through the balance between receiving food and energy. The ghrelin hormone increases appetite and food intake. The aim of this study was to examine the order effect of combined training on ghrelin levels and energy expenditure in overweight women. Methods: 30 overweight female (aged 32-18 years, body mass index ≥ 25 kg m) was selected and randomly divided into three groups, endurance – resistance (E+S), resistance –endurance (S+E) and control group. Participants performed eight,weeks, threesessions per week combined training.. 24 h before and 48 h after training program Ghrelin levels and energy expenditure were measured by ELISA kit and Harris-Benedict formula. The statistical analysis was performed using ANOVA test and LSD post hoc test and SPSS statistical software with significance level of (P <0.05).Results: E+S and S+E intervention was caused increase on energy expenditure than control group (p<0.05) and There was no significant effect on ghrelin(p>0.05) . Also, there was no significant difference between strength - endurance and endurance-strength intervention on the ghrelin levels and energy expenditure in overweight women.Conclusion: Without attention to order of training, combined exercises has significant effect on and energy expenditure and There is no significant effect on ghrelin levels .it seems appropriate training methods for weight loss of overweight women.
Elham Eyni Gandomani; Jalil Reisi
Abstract
The purpose of this study was to investigate the effect of eight weeks high intensity interval training and spirulina supplementation on humoral immune system, cardio respiratory fitness and body composition of overweight women. 30 inactive students (height (cm): 161. 7 ± 2. 8, weight (kg): 75.76 ...
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The purpose of this study was to investigate the effect of eight weeks high intensity interval training and spirulina supplementation on humoral immune system, cardio respiratory fitness and body composition of overweight women. 30 inactive students (height (cm): 161. 7 ± 2. 8, weight (kg): 75.76 ± 8.43, age(y): 25. 06 ± 6. 66) were divided into three groups (placebo - HIIT, spirulina - HIIT, spirulina). Exercise groups performed HIIT for 8 weeks (3 sessions per week with 4-7 repetitions in each session () in intensity of 90% of the maximum heart rate). Supplementation groups received 6 g spirulina powder per day. Fasting blood samples were collected before and after 8 weeks to determine the levels of IgA and IgG. A significant reduction was observed in BMI, WHR, body fat percentage and significant increase in body fat free mass, VO2max, IgA in all three groups. There was a significant elevation in IgG level in the placebo - HIIT and spirulina - HIIT (P=0. 001, t=-6. 77) groups. However, there was no significant difference in IgG levels between the pre and post supplement consumption in the spirulina group (P=0. 07, t=-1. 54). In general, the results of this study showed that 8 weeks of HIIT and supplementation of spirulina increase the function of the immune system and respiratory cardiovascular fitness. Also, 8 weeks of HIIT and spirulina supplementation cause of weight loss and increase fitness by decreasing BMI, WHR, body fat percentage and increase body fat free mass in women.
N Khosravi; Hadi Rohani; S Ghaffari
Volume 5, Issue 2 , February 2016, , Pages 121-132
Abstract
Aim: The aim of current study was to evaluate the effect of exercise day-time on maximal fat oxidation (MFO), exercise intensity (FATmax) and time (MFOtime) that elicite MFO and their relation to body composition in normal and overweight women. Metod: Forteen 20-30 years old students were randomly ...
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Aim: The aim of current study was to evaluate the effect of exercise day-time on maximal fat oxidation (MFO), exercise intensity (FATmax) and time (MFOtime) that elicite MFO and their relation to body composition in normal and overweight women. Metod: Forteen 20-30 years old students were randomly selected and participated in to two normal waight (20<BMI-2) and overweight (BMI>25 kg.m-2) group. The data were analyzed using statical teats of dependent and paire T- test to copmair changes between session results. Resuils: Mean value of MFO at morning was significantly higher in overweight group than that in normal group (p<0.05). Also, no significant differences were observed between groups at evening. There was no significant relationship between body fat percent and MFO at morning, nor at evening; however, there was a significant negative relationship between body fat percent and MFOtime in overweight group at evening (r=-0.92, p<0.05). Conclusion: Generally, it seems that maximal fat oxidation during exercise is higher in the people who have more body fat percentage. However, this is eveident at morning rather than evening and enhancing fat oxidation at evening may need longer time exercise with higher intensity.
Rozita Fathi; Parvaneh NazarAli; BiBiSara Imeri
Volume 3, Issue 2 , July 2014, , Pages 105-113
Abstract
Abstract
Aim: Nesfatin-1 is a novel adipokine secreted by adipose tissue and interfere in regulation of blood Glucose, improvement of insulin sensitivity, appetite regulation, energy homeostasis and metabolic function. Given the importance of resistance exercise in prevention and treatment of overweight ...
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Abstract
Aim: Nesfatin-1 is a novel adipokine secreted by adipose tissue and interfere in regulation of blood Glucose, improvement of insulin sensitivity, appetite regulation, energy homeostasis and metabolic function. Given the importance of resistance exercise in prevention and treatment of overweight and obesity, the purpose of this study was to determine the effect of eight weeks resistance training on plasma levels of nesfatin-1 in overweight women.
Method: Thirty-eight overweight women (age 34.84±5.70 y, BMI 28.82±3.65 kg/ m2, body fat percent 36.34±3.39 % and WHR 0.85±0.04 (means ± SD)) were randomly divided into 2 groups. Resistance exercise training (50 min/day, 60-70% 1-RM, 4 days/week). Fasting blood samples were collected to assess changes in plasma Nesfatin, insulin and glucose levels in before and after 2 months of the training program. Independent t-test and Pearson correlation coefficient were used for further analysis (P
