AmirHossein Haghighi; Hadi YarAhmadi; Maliheh Shojaee
Volume 20, Issue 5 , March and April 2014, , Pages 623-634
Abstract
Abstract
Introduction: Visfatin is a newly discovered adipokine which increases with obesity. It is not clear whether endurance training which induces changes in adipose tissue and blood lipids might decrease the plasma level of visfatin as well. The aim of this study was to investigate the effect of ...
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Abstract
Introduction: Visfatin is a newly discovered adipokine which increases with obesity. It is not clear whether endurance training which induces changes in adipose tissue and blood lipids might decrease the plasma level of visfatin as well. The aim of this study was to investigate the effect of 9 weeks of aerobic training on serum visfatin level and insulin resistance index in obese women.
Materials and methods: Method of research was semiexperimental. Twenty-eight obese female volunteered and were randomly divided into experimental (14 subjects with means of weight 82 ± 10.2 kg, and BMI 34.2 ± 4.3 kg/m2) and control (14 subjects with means of weight 79.9 ± 9.5 kg, and BMI 34 ± 3.9 kg/m2) groups. Aerobic training protocol consisted of 4 sessions per week for 9 weeks. Each training session was a slow running trial at intensity of 65 to 75 percent of maximal heart rate for a period of 15 minutes. To follow the principle of overload, half-a-minute was added to each session after the second week, so that, at the last session the running time reached to 31 minutes. Before and after the training period, blood sampling was performed. Data were analyzed using independent t test and ANCOVA.
Results: Results showed significant reduction of serum visfatin level (p < 0.05), and no significant difference in insulin resistance index, serum HDL, LDL, TC and TG between the control and experimental groups (p > 0.05). In addition, aerobic training reduced significantly body mass index, body weight, waist to hip ratio, body fat percent, and increased significantly maximum oxygen uptake (p < 0.05).
Conclusion: It can be said that 9 weeks of aerobic training can cause significant reduction of serum visfatin and no significant change in insulin resistance index in obese women.
AmiriHossein Haghighi; Hadi Yarahmadi; Abdolhamed Darijani
Volume 20, Issue 3 , September and October 2013, , Pages 310-319
Abstract
Background: Smoking can decrease adiponectin serum and increase insulin resistance index. The purpose of present study was to examine the effect of one session of exhaustive aerobic exercise on levels of adiponectin serum and insulin resistance index in smoker men.
Materials and methods: A semi-experimental ...
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Background: Smoking can decrease adiponectin serum and increase insulin resistance index. The purpose of present study was to examine the effect of one session of exhaustive aerobic exercise on levels of adiponectin serum and insulin resistance index in smoker men.
Materials and methods: A semi-experimental design was used. The target population consisted of smoker students of the Hakim Sabzevari University, from whom twelve smoker male students volunteered and were randomly divided into three situations; control, exhaustive aerobic exercise at 70-75% intensity of maximal heart rate, and exhaustive aerobic exercise at 90-95% intensity of maximal heart rate, in a crossover design.Two situations of aerobic exhaustive exercise programs involved running on treadmill with intensities of 70-75% and 90-95% of maximum heart rate of the subjects. During this period, the control group did not perform any physical activity. To calculate changes in plasma volume and measurement of adiponectin, glucose, insulin and lipid profile indices blood samples were collected before and immediately after performing of aerobic exercises. Data were analyzed using one way analysis of variance (ANOVA).
Results: After the correction of results with respect to plasma volume changes, no significant differences in serum of adiponectin levels (P=0.825) and insulin resistance index (P=0.756) were determined between the control and experimental situations. Furthermore, no significant difference was observed among the three situations in the glucose (P=0.633), insulin (P=0.768), low density lipoprotein (P=0.075), high density lipoprotein (P=0.131), total cholesterol (P=0.559), and serum triglyceride (P=0.641).
Conclusion: One session of exhaustive aerobic exercise with two different intensities has no effect on levels of serum adiponectin and insulin resistance index in smoker men. However, to achieve more conclusive results, further investigation is warranted.
Hadi Yarahmadi; Mehdi Zaree
Volume 20, Issue 2 , May and June 2013, , Pages 194-203
Abstract
Background and purpose: Appetite is one of the factors influencing the energy equation and with different levels of control and setting. Physical activity is one of the possible factors. For this reason, the purpose of this study was to compare the effect of one session of swimming, resistance and aerobic ...
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Background and purpose: Appetite is one of the factors influencing the energy equation and with different levels of control and setting. Physical activity is one of the possible factors. For this reason, the purpose of this study was to compare the effect of one session of swimming, resistance and aerobic exercise on the student girl’s appetite. Methods: research design was used mid tentative and the target population consisted entirely girl’s student of the University. Among them, 60 females randomly in 4 groups of 15 persons swimming, resistance, aerobic exercise and control and performed protocol exercise within 90 minutes. The appetite was recorded by appetite questionnaire before, immediately after exercise and 3 hours after the exercise protocol. The food given to girl’s before and on the day of the exercises was similar. Also glucose and lactate of the blood measurement in before each stages module appetite. Data was analyzed using repeated measure ANOVA at significant level P
Hadi Yarahmadi; AmirHossein Haghighi; Mohammadreza Hamedinai; Mehdi Zaree
Volume 19, Issue 4 , January and February 2013, , Pages 371-381
Abstract
Background: The aim of this study was to Survey of relationship physical activity level and sedentary behaviors with diet patterns among 12-14 year-old adolescent boys in Sabzevar. Materials and methods: This cross-sectional study was performed on 650 boy students aged 12-14 years in Sabzevar that were ...
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Background: The aim of this study was to Survey of relationship physical activity level and sedentary behaviors with diet patterns among 12-14 year-old adolescent boys in Sabzevar. Materials and methods: This cross-sectional study was performed on 650 boy students aged 12-14 years in Sabzevar that were selected via classified random Sampling. Physical activity levels were assessed by the Physical Activity Questionnaire for Older Children (PAQ-C). Energy intake and Macronutrient were assessed by means of a semi-quantitative food frequency questionnaire (FFQ). Sedentary behaviors of subjects assessed by means of a made-researcher questionnaire by researcher. Data were analyzed by SPSS version 13 software using Spearman and Pearson's correlation coefficient and ANOVA test. Result: There was no significant correlation between physical activity level and energy intake and macronutrient. In total subjects there was no significant difference in the reported energy intake and macronutrient between physical activity levels. But, in 12 year-old subjects, energy intake, Total fat, Protein and Carbohydrates in low physical activity level subjects were significantly higher than moderate physical activity level subjects. There was significant positive correlation between physical activity level and Number of breakfast Consumption per week. There was no statistically significant correlation between the reported Energy intake and Macronutrient with sedentary behaviors. Conclusion: There was no significant difference in the reported Energy intake and Macronutrient between physical activity levels among 12-14 year-old students. But, energy intake and macronutrient in low physical activity level subjects were somewhat higher than active subjects. Therefore, the results suggest that nutrition education regarding balanced diet and optimum physical activity is required for children's health and growth.
Seyyed AliReza Hosseini Kakhk; Hadi Yarahmadi; MohammadReza Hamedinia; AmirHossein Haghighi
Volume 17, Issue 2 , July and August 2010, , Pages 108-115
Abstract
Background and Purpose: Appetite is one of the factors affecting the energy intake equation and has different control and regulatory levels. One of the probable factors affecting it is physical activity. The purpose of the present study was to examine the effects of moderate and heavy resistance exercise ...
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Background and Purpose: Appetite is one of the factors affecting the energy intake equation and has different control and regulatory levels. One of the probable factors affecting it is physical activity. The purpose of the present study was to examine the effects of moderate and heavy resistance exercise on appetite, glucose, glycerol and lactate of the serum in healthy men. Methods and Materials: In this experimental study, out of the university employees, 13 male volunteers were recruited for the study by their own written informed consent, and were assigned into three modes of control, moderate resistance exercise (with intensity of 70% of 1RM) and heavy resistance exercise (with intensity of 80% of 1RM) groups. The process consisted of 8 different movements arranged in 3 sets with 10 repetitions within 90 minutes. The participants' appetite parameter was recorded by appetite questionnaire before collecting blood samples. Data was analyzed using repeated measures ANOVA in SPSS 13 at a significance level of P