جستجوی مقالات مرتبط با کلیدواژه « appetite » در نشریات گروه « تربیت بدنی »

This study intends to investigate the effect of resistance exercise during fasting and after breakfast on appetite and energy intake in young women.

Ten young non-athlete women in the age group of 20 to 35 years and body mass index of 20 to 25 performed resistance exercise (70% 1RM) on two different days, one week apart, fasting or after eating breakfast. Visual Analogue Scales (VAS) were used 6 times for appetite assessment and the ad libitum food intake was measured before and after of exercise and the two days after. Blood sugar (BS) was also measured twice before and after exercise. Paired t-test was used to analyze the data.

The results showed that BS before exercise in the fasting state was significantly lower than in the non-fasting state (p = 0.004) but this difference was not significant after exercise. Appetite before lunch in the fasting state was significantly higher than in the non-fasting state (p = 0.005). However, the calories consumed in lunch were significantly lower in the fasting state compared to the non-fasting state (p = 0.049). While the total energy intake of 24 hours per training day was significantly higher in the non-fasting group (p = 0.002), There was no significant difference in energy intake 24 and 48 hours after exercise, (p ≥ 0.05).

It seems that consuming breakfast before resistance exercise increases the energy intake in the post-exercise meal without effect on the next days.

Infertility is one of the most important crises in life. Lifestyle modification is one of the most important treatments for infertility and includes things such as maintaining fat percentage, physical activity, and appetite in the right range. The present study was conducted with the aim of determining the appetite, fat percentage and physical activity of infertile women referring to infertility centers in Tehran.

This is a cross-sectional descriptive analytical study that was conducted on 289 infertile women referring to infertility treatment centers in Tehran. The research samples were selected by cluster sampling method and completed the questionnaires of appetite and physical activity. A body analyzer was used to measure fat percentage. After collecting the data, the data were analyzed using Pearson's statistical tests, analysis of variance and independent t, considering the significance level of 0.05.

The mean and standard deviation of fat percentage, appetite and physical activity in people with infertility were 41.32 ± 5.71, 69.29 ± 10.09 and 34.40 ± 15.71 respectively. There was a direct correlation between fat percentage and appetite and between appetite and physical activity and an inverse correlation between fat percentage and physical activity (p<0.001).

The physical activity level of the subjects was low and their fat percentage and appetite were high, therefore, the necessity of promoting supportive care based on regular daily physical activity throughout life and fertility treatment is emphasized.Keywords: infertility, fat percentage, physical activity, appetite.

Ghrelin is a peptide that consists of 28 amino acids and is produced by epsilon cells in the pancreas and stimulates the feeling of hunger, and this substance increases before eating food and decreases after it. The aim of study is to evaluate the effect of 6 weeks of high intensity interval training (HIIT) on plasma levels of acyl ghrelin hormone of obese men.

For this purpose, 20 obese men aged 18 to 22 years old with a BMI between 29/9 and 34/9 kg/m2 in two experimental groups of 10 each (six weeks of high-intensity interval training, three sessions per week that include four-minute intervals. It was exercise with an intensity of 90% of the reserve heart rate with two minutes of recovery per week. Interval training with high intensity three sets in the first week and one set was added every week until the fourth week ) and control was 10 people (without training intervention)and were studied in the pre- and post-test design. Before and after six weeks of training, the height and weight of the subjects of both groups were measured to measure the body mass index and their blood samples were collected and taken to the laboratory to measure the plasma levels of the acetylated ghrelin hormone. The data were analyzed using t-test and covariance analysis at a significance level of P≤0.05.

The results of the analysis of covariance showed a significant increase in ghrelin levels and a significant decrease in body mass index in the post-test stage compared to the pre-test in the experimental group and the control group (P<0.05).

The results indicate that six weeks of high-intensity interval training with an increase in acetylated ghrelin can reduce appetite and, as a result, reduce body mass index and be effective in reducing the weight of obese people.

Introduction and Recovery is very important aspect of training. Desire for food intake is important at this time. The aim of the present study was to evaluate the response of glucose, insulin and appetite to the amount of carbohydrate consumption after intense intermittent exercise (HIIE). Thirty-two female athletes (age 22.41±1.04 yrs and weight 56.77±2.41 kg) participated in this study were divided into two carbohydrate drink rate (1.2 g/kg) and (0.4 g/kg) groups. The HIIE consists of 8×3 min set at 80% HRmax. The initial speed was 6 km/h with a 1% gradient. Running speed was increased by 1 km/h with 3 min intervals. 90-s active recovery at 55% between repetitions was considered. The subjects consumed CD at 15 and 90 min after HIIE. Blood samples were taken before, immediately and 150 min after and appetite was measured by a visual analog scale [VAS] before, immediately, 15, 30, 60, 90 and 150 min after HIIE. Statistical data analysis was conducted by the repetitive multivariate analysis of variance and Pearson correlation coefficient (P<0.05). Amount of carbohydrate intake leads to significant differences in desire for food 30 min after activity (P<0.05). 0.4 g/kg carbohydrate drink led to a lower desire for food (P<0.05). Glucose immediately after exercise into two groups was increased, but after 150 min in the 1.2 g/kg group was decreased (P<0.05).Discussion and According to the results, it seems that appetite decreased after HIIE and increased after carbohydrate consumption in both groups, which can be justified due to glucose absorption and improvement in insulin resistance.

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.

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.

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).

Mild physical and mental exercises such as Hatha Yoga can be useful in reducing the weight of obese women through appetite control.

Recovery is very important aspect of training. Desire for food intake is important at this time. The aim of the present study was to evaluate the response of glucose, insulin and appetite to the amount of carbohydrate consumption after intense intermittent exercise (HIIE).

Thirty-two female athletes (age 22.41±1.04 yrs and weight 56.77±2.41 kg) participated in this study were divided into two carbohydrate drink rate (1.2 g/kg) and (0.4 g/kg) groups. The HIIE consists of 8×3 min set at 80% HRmax. The initial speed was 6 km/h with a 1% gradient. Running speed was increased by 1 km/h with 3 min intervals. 90-s active recovery at 55% between repetitions was considered. The subjects consumed CD at 15 and 90 min after HIIE. Blood samples were taken before, immediately and 150 min after and appetite was measured by a visual analog scale [VAS] before, immediately, 15, 30, 60, 90 and 150 min after HIIE. Statistical data analysis was conducted by the repetitive multivariate analysis of variance and Pearson correlation coefficient (P<0.05).

Amount of carbohydrate intake leads to significant differences in desire for food 30 min after activity (P<0.05). 0.4 g/kg carbohydrate drink led to a lower desire for food (P<0.05). Glucose immediately after exercise into two groups was increased, but after 150 min in the 1.2 g/kg group was decreased (P<0.05).

According to the results, it seems that appetite decreased after HIIE and increased after carbohydrate consumption in both groups, which can be justified due to glucose absorption and improvement in insulin resistance.

exercise training has a remarkable metabolic and appetite-regulating effects. Appetite-regulating effects of exercise training may be altered by fasted and fed status.

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.

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).

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).

The aim was to investigate the impact of aerobic training with and without vitamin D supplementation on hunger rate and serum ghrelin and insulin in middle agead females with metablic syndrome.

fourty one subjects (age: 53.19 ± 4.4 yrs, BMI: 32.68 ± 4.45 kg/m2) were randomized into Aerobic Training+Placebo, Aerobic Training+Vitamin D, Vitamin D and Placebo groups. Vitamin D was consumed 50000 units/week in a double blind order for eight weeks and aerobic training program was conducted 50 to 60 min/session, three sessions/week at 50 to 60% of MHR. One-way ANOVA, two-way factorial ANOVA for repeated measurements and paired samples t test were used to analyze the data.

both of aerobic training and vitamin D supplementation could decrese all of the metabolic risk factors and insulin level (p<0.05), however; pervceived hunger rate and blood ghrelin had no changes throughout the intervention period (p>0.05). More decreases were noted for waiste circumference and also blood glucose with Aerobic Training+ Vitamin D supplementation compared to vitamne D alone(p<0.05).

Aerobic Training and Vitamin D supplementation are safe and efficient in improving cardiometabolic health, however; addition of Vitamin D to the training program has more benefits for weight loss and blood control which makes it as a good prescription for patient with metabolic syndrome.

The regulation of energy balance in humans is a complex and ambiguous issue. Various studies have shown the relationship between physical activity and creating a negative energy balance in the body. The aim of this study was to compare the effects of the different exercise types on appetite, calorie intake, calorie consumption and food liking in girl students.

Based of this semi-experimental study,10 girl students were randomly and voluntarily chosen among all university students. The subjects performed two protocols of swimming and running (80% of the maximum heart rate up to exhaustion), and one protocol of resistance training (80% of a maximum repetition up to exhaustion) during three sessions. Appetite, calorie intake and food intake were recorded by a standard questionnaire. Energy intake also was recorded by 24-hour physical activity form. Analysis of variance with repeated measures and LSD tests were applied to analyze the data at the significant level of p < 0.05.

The tendency to food had a significant increase immediately after the resistance training compared to running (p= 0.001). Feeling hungry had a significant increase (p = 0.001) compared to running training immediately after swimming training, while the feeling of satiety and the ability to eat at four times, did not showed any significant difference between the three types of exercise (p < 0.05). Moreover, between the effect of one session of swimming, running, and exhaustive circular resistance training there was no significant difference in the tendency to food, calorie intake and calorie consumption (p < 0.05).

There was no significant difference between different training activities in terms of calorie intake, calorie consumption and appetite. This means that regardless of the type of activity, exercise can causes a negative caloric balance; a change that probably cannot be compensate during short term.

Nesfatin-1is a reducing appetite peptide, on the other hand energy demand decreases in high altitude, thus it’s possible that training in altitude could have more reducing effect on weight. We decided to do this research in order to investigation the effects of 6-weeks aerobic training in hypoxic condition vs normoxic condition on resting Nesfati-1 and insulin resistance in overweight women. Twenty-four overweight young women (age: 28.25±3.7 yrs. height: 161.8±3.01 cm, weight: 78.64±7.18) were selected and randomly assigned into two experimental groups: hypoxia group (n= 12, 60% of HRmax, in hypoxic condition resembling of 3000 m altitude) and normoxy group (n= 12, 60% of HRmax, in normoxy condition). Training program was consisted of 6 weeks and 3 sessions per week. Anthropometric characteristic, glucose concentration, insulin concentration, insulin resistance and Nesfatin-1 plasma concentration were analyzed before and after training period. Dependent and independent t-test were used as statistical tests. Between group differences in weight (p=0.16), BMI (p=0.19) and glucose (p=0.23) was not significant, but for fat percent (p=0.02), waist circumference (p=0.03), insulin (p=0.001), HOMA-IR (p=0.001) and Nefatin-1 (p=0.002) were significant. The results of this study showed that aerobic exercise in hypoxic condition led to higher increase in Nesfatin-1 in comparison with normoxy condition. Presumably improvement in body composition and insulin resistance index are related to Nestin-1 changes and resulting appetite and energy demand decrement

PYY suppresses appetite, reduces energy intake and increases energy intake. Acute exercise can increase it, but the effect of exercise activity on PYY levels is unclear. This study aimed to evaluate the effects of exercise duration on the plasma levels of peptide YY (PYY) in female recreational athletes.

Nine subjects (aged 25.3±4.9 years, body mass 73.6±5.8 kg, height 171.4±3.9 cm, and body fat 19.9±4.8 %) volunteered to participate in this study. Subjects received a standardized breakfast, which was followed by constant cycling exercise at 60% HRmax( 220-age) for 30, 60 and 90 min, or rest (control session). Blood samples were collected before, immediately after and 60 min after exercise to assess plasma PYY concentrations. Data were analyzed by repeated measures two way ANOVA and Tukey post hoc test at the significant level (p <0.05).

Plasma PYY were unaffected by duration of exercise and were higher than before exercise at immediately after exercise trials similarly.

Acute exercise increased PYY in all experimental sessions. The duration of exercise did not affect the plasma concentration of PYY and its increase was similar after all experimental sessions.

The aim of this study was to investigate the effect of aerobic interval training on acylated ghrelin, peptide tyrosine tyrosine (PYY) and glucagon-like peptide-1 (GLP-1) in healthy young men. Twenty male students with age 22.26±1.25 years old and BMI 23.2±1.4 kg/m2 were randomly assigned to the training and control groups. The training group completed a high intensity interval aerobic exercise training for 12 weeks. The training program consists of four minutes running periods on treadmill with intensity of 85-95%HRmax followed by three minutes of 65-75% HRmax rest active periods. The levels of plasma acylated ghrelin, PYY3-36 and GLP-1 were measured by ELISA method before and after eight- and 12-weeks trainings. In data analysis, was used the Mann-Whitney U test in order to compare the control and training groups and the Wilcoxon test in order to compare the training periods. The results showed that in the training group, levels of acylated ghrelin significantly (P=0.008) decreased after 12 weeks compared to the eight weeks. However, there were no significant changes in the acylated ghrelin, PYY and GLP-1 levels compared to the control group after eight and 12 weeks. Overall it seems appetite hormones alterations in young active males in response to aerobic interval trainings were not considerable, but a 12 weeks period of aerobic interval training may decrease appetite compared to the same training during eight weeks.

Because of a compensatory appetite increase in response to exercise energy expenditure, the net weight loss is less than expected values in weight control interventions. Therefore, we investigated the acute response and adaptation of physiological and conceptual appetite indices and body weight to aerobic training in obese middle-aged and elderly women. Body weight, appetite, plasma glucose, insulin and ghrelin were measured before and after an aerobic exercise session following to a breakfast meal at baseline and after (four measurements) eight weeks of aerobic training (3 sessions/week by expending ~500 calories at 50% of GXT’s exhaustion HR) in 26 sedentary women (weight: 92.58 ± 36.9 kg, age: 56.19 ± 7.3 yrs and VO2max: 32.07 ± 2.78 Lit/min) were assigned into experimental and control groups. Independent and paired t-test, and analysis of variance with repeated measures were used to analyze the data. Although body weight in experimental groups was decreased after aerobic training (P=0.001), however; it was elevated from first to second and also from third to fourth measurements in both groups (P<0.05). Before the training period, plasma ghrelin was elevated after breakfast and an exercise session in the experimental group (P=0.023), however, it was decreased in the control (only served breakfast) group (P=0.001). In both experimental and control groups, insulin (P=0.001) and glucose (P=0.003) increased, while hunger decreased (P=0.001). After the training period, the satiety score increased significantly only in the experimental group (P=0.018). Acute response in the experimental group increased for glucose (P<0.05) and decreased for ghrelin, insulin and hungry (P<0.05). However, in the control group, acute glucose and insulin response increased (P<0.05), but ghrelin and starvation decreased (P<0.05). Training-induced fasting hungry elevation failures the fully achievement to net weight loss expected form training, which suggests including lesser calorie foods in the breakfast meal. Additionally, considering the acute increase of food satiety quotient by exercise, it seems the breakfast meal should be postponed for the end of exercise session.

Appetite affected energy homeostasis, it play an important role in control and regulation of energy balance. The purpose of this study was to investigate the effect of moderate intensity exercise training on appetite, acylated ghrelin and leptin levels in obese and untrained women.

The research method was semi-experimental. The sample group was made of 25 subjects randomly assigned into two groups: high moderate exercise (15 subjects) and control (10 subjects). The blood sample test was taken in two stages of rest and before breakfast and an appetite questionnaire was completed. Running exercise program including three sessions a week for six weeks with 64-76% of maximum heart rate. 2-way ANOVA with repeated measures was used to analysis the data.

The results showed that fat percentage (P=0.53) and body weight (P=0.48) after exercise did not change significantly, but maximum oxygen consumption was significantly increased after exercise (P=0.03). Moderate intensity exercise did not have a significant effect on leptin (P=0.93) and plasma acylated ghrelin (P=0.86). Besides, there was not a significant difference in appetite (P=0.76) and daily calorie intake (P=0.58) between two groups.

The lack of significant negative energy balance in the research protocol, resulting in no significant weight loss, did not create compensatory responses of appetite. It seems that the duration of exercise should be increased to change the appetite and related hormones, in order to create a negative balance.

The purpose of this study was to investigate the effect of folate supplementation during 10 weeks of resistance training on serum and stomach level of ghrelin and serum level of insulin in male Wistar rats. Thirty two male Wistar rats (8 weeks old, 204.4±18.2 g.BW) after 1 week familiarization and based on their weights, were randomly divided into four equal groups (8 rats in each group): control, folate supplementation, resistance training, resistance닪榕黖궊 groups. Training groups carried out 10 weeks (5 session/week) of resistance training on 1 meter height ladder (divided by 26 stairs) with load corresponding to 30℅ of their body weight (suspended from tail) at the first week and was gradually increased to 250℅ at the last week. Supplementation was conducted by dissolving 10 mg folic acid in per liter of consumed water. Serum concentrations of ghrelin and insulin and stomach concentrations of ghrelin were assessed using ELISA method. The results showed that serum level of ghrelin in resistance group decreased significantly in compare with control (P=0.002), supplementation (P=0.001) and resistance닪榕黖궊 (P=0.017) groups. Also the ghrelin of stomach increased significantly in resistance닪榕黖궊 group in compare with control (P=0.014) and resistance (P=0.017) groups. There was no significant differences between 4 groups in serum insulin (P=0.673). Based on our results, folate supplementation during resistance training increases the ghrelin of stomach or at least prevents from decreases the serum ghrelin.

The control of appetite and energy balance is key to weight control. The purpose of this study was to investigate the effect of eight weeks high-intensity interval training with milk supplementation on appetite and body composition in obese women. 30 obese women selected and divided into three groups control, Training and Training + milk randomly. Training groups undertook HIIT training for eight weeks with 70 to 90 percent of VO2max. To measure appetite, specific questionnaires (VAS) were used. Subjects in this study, 236 ml of milk was given to subjects after 10 minutes of training. For data analysis, t test was performed at the significance level of P <0.05 with SPSS software. The overall result of the study indicated that eight weeks of HIIT training and milk supplementation had a significant effect on appetite (P <0.001) and body composition (P <0.001) in Training and Training + milk groups but not significant effect on control group on appetite (P =0.434) and body composition (P =0.531). The present study showed that after eight weeks of HIIT exercise, appetite and body composition in both exercise and exercise groups improved, it is suggested that the HIIT exercise protocol and milk intake should be considered in order to reduce appetite and improve the body composition of obese women.

The aim of this study was to compare the effects of two methods of Iso-distance continuous and intermittent exercise training on appetite and body composition in overweight and obese sedentary girls. Twenty six overweight and obese girls who were resident of Shahed university dormitory were purposefully selected and randomly assigned into following Iso-distance groups: interval exercise training and continuous exercise training. Each Group performed their own protocol for 8 weeks, 3 times per week with specified intensity and distance. Before starting the protocol and 24 hours after the last training session, appetite, percentage of body fat, waist circumference, waist-to-hip ratio, body mass index, and maximum oxygen uptake were measured at same condition. Data were analyzed using Paired sample t test and analysis of covariance. The findings showed that neither interval and nor continuous exercise training protocol had a significant effect on appetite (p>0.05). Also, two exercise training protocol significantly reduced percentage of body fat (p=0.377), body mass index (p=0.372), waist-to-hip ratio (p=0.509) and waist circumference (p=0.242), but the difference between groups was not significant (p>0.05). It seems that eight weeks of continuous and interval exercise training had no stimulatory or suppressive effect on appetite. Also, when the protocols are Iso-distance interval and continuous exercising training had similar effect on body composition of overweight and obese sedentary girls.

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.
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.
Absolute and relative energy intake were reduced significantly after consuming milk compared with two other trials (exercise,exerciseꊶꞁ juice)(p

The aim of this study was to compare the effect of one swimming session in different water temperatures (23, 33 and 38̊ c) on the appetite, calorie intake, calorie consumption, food liking, and the amount of blood lactate in female students. The research design was semi-experimental and 12 female volunteers (mean age 20.83 ± 1.3 yr, BMI 20.46 ± 2.68 kg/m², weight 53.6 ± 5.46 kg) from university students performed the swimming protocol of front crawl in the three temperatures of 23̊c (cold water), 33̊c (normal water) and 38̊c (warm water) for 45 minutes with intensity of 80-85% of maximum heart rate. The amount of appetite and food-liking were recorded by appetite questionnaire and recall of 24 hours of nutritional materials by the subjects. Also, calorie intake and calorie consumption were recorded in the related questionnaires during, before and after performing the protocol by the subjects and were calculated by the album book of nutritional materials and the summary table of body exercise. The concentration of the blood lactate was measured by a lactometer before, immediately after and 3 and 9 hours after performing the protocol. The results showed that one swimming session in different water temperatures (23, 33 and 38̊ c) had no effects on appetite, food-liking, calorie intake and calorie consumption, and water temperatures cannot have an effect on weight loss or gain alone in this type of participants.