Exercise Physiology
ADEL DONYAEI; Abolfazl Khosravi; Masoud Ardeshiri; farhad gholami
Abstract
Objectives: exercise training has a remarkable metabolic and appetite-regulating effects. Appetite-regulating effects of exercise training may be altered by fasted and fed status. Methodology: in a randomized trial, 54 obese men with BMI > 30 kg/m2 were randomly divided into groups including 2 experimental ...
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Objectives: exercise training has a remarkable metabolic and appetite-regulating effects. Appetite-regulating effects of exercise training may be altered by fasted and fed status. Methodology: in a randomized trial, 54 obese men with BMI > 30 kg/m2 were randomly divided into groups including 2 experimental groups of training (fasted and fed) and control. The experimental groups performed a concurrent exercise program including aerobic training (walking/ running at 60-70% of heart rate reserve lasting 30 minutes) followed by strength training (circuit training with 10 repetitions for each exercise in 3 rounds interspersed with 2-3 min rest) with a frequency of 3 d/w over 8 weeks. The fasted group performed exercise program following overnight fasting, and the fed group performed the exercise program following breakfast. At the beginning and 48 hours after the last training session measurements were performed. Data were analyzed using one-way analysis of variance at a significance level of 0.05. Results: concurrent training resulted in a significant decrease in leptin (p=0.001) as well as the appetite (p=0.002) compared to the control group; yet, no significant difference was observed between the two experimental groups (P<0.05). Furthermore, ghrelin significantly decreased in the experimental groups compared to the control (p=0.001) and a significant difference between the two experimental groups was also observed (p=0.013). Conclusion: The findings of the present study indicates that appetite and leptin are remarkably affect by concurrent training but not by pre-exercise feeding status. However, ghrelin resting concentration is likely to be affect by pre-exercise feeding status (fasted vs fed).
Response and adaptation to exercises
Soniya Fateh; Azam Zarneshan; Bahloul Ghorbanian
Abstract
Aim: The effect of exercises that consist of a set of mental and physical exercise has received less attention on reducing appetite and obesity. The aim of this study was to investigate the effect of hatha yoga training on Nesfatin-1 as an inhibitory factor on appetite and a regulator of energy balance, ...
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Aim: The effect of exercises that consist of a set of mental and physical exercise has received less attention on reducing appetite and obesity. The aim of this study was to investigate the effect of hatha yoga training on Nesfatin-1 as an inhibitory factor on appetite and a regulator of energy balance, appetite and obesity indices in overweight women. Methods: In this semi-experimental study, 24 women aged 35-45 years (with a mean BMI of 28.94 ± 3.62 kg/m2) were randomly divided into two exercise (n=12), and control(n=12) groups. The exercise group participated in hatha yoga training for eight weeks and the control group continued their daily activities. Blood sampling (serum nesfatin-1) and measurement of appetite (desire to eat, satiety, fullness and hunger) and obesity (BMI, waist-to-hip ratio (W/H ), fat percentage) indicators were performed twice, before exercise and 48 hours after exercise in subjects' luteal phase. Data analysis was done by paired t-tests, ANCOVA and Pearson's correlation coefficient and using SPSS23 software.Results: In the exercise group, nesfatin-1 increased significantly (p=0.001). The hunger and desire to eat decreased significantly, the satiety and fullness increased significantly (p<0.05). Obesity indicators showed a small but significant decrease (p<0.05). A positive and significant relationship was found between the reduction of hunger and obesity indicators (BMI, W/H and fat percentage), as well as the reduction of appetite, BMI and fat percentage(p<0.05).Conclusions: Mild physical and mental exercises such as Hatha Yoga can be useful in reducing the weight of obese women through appetite control.
E Akbarzadeh; H Mohebbi
Abstract
Aim: The body weight is controlled by the balance between energy intake and energy expenditure and also, the amount of exercise-induced weight loss, depends on the amount of the food intake. Milk has also been shown to be more satiating compared to carbohydrate drinks. Therefore the aim of this study ...
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Aim: The body weight is controlled by the balance between energy intake and energy expenditure and also, the amount of exercise-induced weight loss, depends on the amount of the food intake. Milk has also been shown to be more satiating compared to carbohydrate drinks. Therefore the aim of this study was to investigate the effect of milk consumption following exercise on appetite and energy intake in non-athlete females.
Method: Eight healthy non-athlete women (aged 23.25±2.19 years, BMI 21.71±2.42 Kg/m2) volunteered to participate in this study. The Subjects attended the laboratory on three separate randomized trials (there were 3 weeks between trials) during their follicular phase. After consuming a standardized breakfast at 08:00 a.m, 30 minutes continuous exercise was conducted on the cycle ergometer at 65% of the subject’s heart rate reserve. In one trial, the effect of exercise and in the other two trials, the effect of exercise and consuming 600ml of low-fat milk or orange juice (276 Kcal), were investigated on appetite and energy intake. The subject’s energy intake were calculated 60 minutes after exercise or drink ingestion. Also appetite sensations (hunger, fullness, satiety and desire to eat) were assessed using visual analogue scale.
Results: Absolute and relative energy intake were reduced significantly after consuming milk compared with two other trials (exercise,exercise+orange juice)(p<0.05). In addition, consuming milk after exercise in comparison with other trials, caused significant reduction in hunger and desire to eat and it also caused significant increase in fullness and satiety(p<0.05).
Conclusion: The results of this study showed that consuming milk could be useful for controlling the appetite after exercise. Moreover, it could be a part of the strategies for weight control programs.
Ahmad Mohammadi Moghaddam; Naser Behpoor; Vahid Tadibi
Volume 3, Issue 2 , July 2014, , Pages 115-128
Abstract
Abstract
Aim: The previous research has identified that many factors can affect appetite. Exercise is one of these factors that affect appetite and subsequent energy intake rate. This study aims to examine the effect of light, moderate and high intensities of circuit resistance exercise on the appetite.
Methods: ...
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Abstract
Aim: The previous research has identified that many factors can affect appetite. Exercise is one of these factors that affect appetite and subsequent energy intake rate. This study aims to examine the effect of light, moderate and high intensities of circuit resistance exercise on the appetite.
Methods: 8 healthy men and 8 healthy women participated in this study as subjects voluntarily. Exercise activity with three intensity, light ( 30 to 40 % of 1RM), moderate (50 to 60 % 1RM) and high ( 80 to 90 % 1RM), and in six moves induding the bench press, armpits, shoulder, leg squat, back foot and leg (each session was 90 minutes) has performed. Appetite were assessed before exercise activity, immediately after, and three and six hours after exercise activity by Visual Analog Scale (VAS). ANOVA with repeated measures and t-test were used to analyze the findings. The significant level was considered (P
Fatah Moradi; Vayan Vosouqi; Azam Heydarzadeh
Volume 3, Issue 2 , July 2014, , Pages 89-104
Abstract
Abstract
Aim: Appetite is a subjective concept to describe control of food intake, and is under control of brain and hormones like active ghrelin. Ever-increasing incidence of obesity and related multiple psychological and physiological problems converted it into a global epidemic, while sedentariness ...
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Abstract
Aim: Appetite is a subjective concept to describe control of food intake, and is under control of brain and hormones like active ghrelin. Ever-increasing incidence of obesity and related multiple psychological and physiological problems converted it into a global epidemic, while sedentariness is considered as one of the main obesity-causing factors. Chemerin is a new adipokine that its serum level increases in obese patients. The purpose of this study was to survey effect of twelve weeks aerobic training on chemerin, active ghrelin, and appetite in sedentary obese men.
Method: In a semi-experimental study, twentyone sedentary obese men were randomly placed in two groups: aerobic training (n=10, 27.8±3.2 yr, 93.5±7.1 kg, 31.7±3.4%, 32.0±3.5 kg/m2) and control group (n=11, 26.7±2.6 yr, 92.9±6.3 kg, 31.4±3.2 %, 32.3±2.8 kg/m2). General characteristics of subjects, circulating levels of chamerin and ghrelin (using ELISA kits), and appetite (using Council on Nutrition Appetite Questionnaire) were assessed before and after training. Aerobic training protocol consisted of twelve weeks pedaling on cycle ergometer (3 sessions per week, intensity 60-70% of reserved heart rate, duration of each session 20-40 min). Data analyzed by SPSS16 software. Statistical significance was accepted at P
