جستجوی مقالات مرتبط با کلیدواژه "green tea supplement" در نشریات گروه "پزشکی"

With the advancement of technology in the 21st century and the decline of physical activity, obesity has become widespread. In developing countries, the prevalence of obesity is increasing day by day and people at a younger age suffer from obesity. The World Health Organization estimates that there are over one billion overweight adults in the world (body mass index above 27 (kg / m2). Metabolic syndrome is one of the negative consequences of obesity and is a set of metabolic and vascular risk factors that include hyperglycemia, changes in serum lipids, hypertension, hypertension and abdominal obesity. Central obesity and insulin resistance are two key components of metabolic syndrome that increase with age and unhealthy lifestyle (high calorie diet and inactivity). On the other hand, obesity is associated with mild chronic inflammation. In fact, one of the main causes of obesity-related metabolic disorders has been attributed to chronic inflammation. In the past, adipose tissue was believed to be an ineffective tissue and acted only as a store of triglycerides. But it is now well established that adipose tissue secretes a number of biologically active proteins called adipokines, thereby playing a role in energy homeostasis, systemic inflammation, and the regulation of the body's physiological functions, and possibly in disease. The development of metabolic syndrome is key. Reactive protein C (CRP) is a stable marker of systemic inflammation produced in response to inflammatory intercellular cytokines (IL-6) and tumor necrosis factor alpha (TNF-1) (secreted from adipose tissue) in the liver.In fact, with the onset of middle age, some physiological changes occur in people that affect their health. Changes in this period of life increase some inflammatory factors and decrease some factors affecting health. At the same time, some supplements are used today to improve people's health. The aim of this study was to evaluate the effect of twelve weeks of combined exercise and green tea supplementation on levels of irisin, IL-6 and body composition of overweight middle-aged men.

The method of the present study was quasi-experimental with a pretest-posttest design. For this purpose, 40 overweight middle-aged men according to the inclusion criteria such as: middle-aged men with an age range of 40 to 50 years, middle-aged men with a body mass index between 25 to 30 percent, complete health and no disease of people with any From diseases of blood pressure, diabetes, obesity and atherosclerosis, not using supplements (vitamins and minerals, etc.) or medication, They were divided into three groups: supplement (12), combination training group - placebo (14) and combination training - supplement (14). Samples with age range (year) 47.94 ±2.83, weight (kg) 85.56 ±9.49, height (m) 174.61 ±5.30, body mass index 27/99 ± 2/08(kg / m2) and fat mass 26/02 ± 2/30% . Also, by observing all ethical criteria before and during the research, criteria such as: no participation of the subject more than three sessions during the training course, consumption of other supplements during the training protocol, simultaneous participation in other sports activities such as exclusion criteria Was taken. The combined exercises group performed combined exercises for twelve weeks and 6 sessions per week for 45 to 60 minutes. Aerobic exercises with an intensity of 60 to 75% of maximum heart rate and resistance exercises with an intensity of 60 to 75% were performed with maximum repetition and the control group did not have any exercises during the training period. They did combination exercises. These exercises were performed in this way on consecutive days. The combined supplementation group receives a 500 mg capsule daily one hour before each exercise session. The placebo-combination combination group also receives one 500 mg placebo capsule one hour before each training session. Subjects in the supplement group did no specific exercise and only performed their daily activities and received a 500 mg capsule daily before each meal. Green tea A bag containing the main polyphenols of green tea is completely powdered and then the capsule cover is filled with this powder. For the placebo group, capsules containing cornstarch powder are prepared that will look like green tea extract capsules. Blood samples were taken 24 hours before the start of training and 48 hours after the last training session. One day before the experiment, data on height, weight, fat percentage and body mass index were measured. After familiarizing the subjects with the implementation of the protocol and the correct method of performing the movements, their maximum repetition was calculated according to Barzisenki's formula in the desired movements and based on the principles of training, the principle of increasing the load was observed. Data were analyzed using repeated measures analysis of variance and Bonferroni post hoc test (P≥0.05).

The results showed that combined exercise and green tea supplementation caused a significant increase in the amount of irzin (P = 0.001). The results also showed that IL-6 levels decreased significantly after combined training and green tea supplementation (P = 0.001). Overall, the results showed that resistance training with green tea supplementation decreased interleukin 6 and increased irzin after eight weeks in the combined training groups, training + green tea supplementation and green tea supplementation group compared to the control group. These changes were significant in the control group.

In general, the results of the present study indicate that performing combined exercises with the consumption of green tea is essential for the health of middle-aged people and improves their physiological condition. These exercises, along with taking antioxidant supplements such as tea, reduce factors such as interleukin-6, which play an important role in initiating inflammatory processes, and increasing important factors such as irzin can lead to aging and obesity, like some diseases, which is recommended. People should use these exercises with the intensities expressed in the present study and take green tea supplements with the recommended dose.

Exercising with herbal supplements is recommended as an important way to control and prevent obesity. The aim of the study was to evaluate 8 weeks moderate intensity rhythmicaerobic exercise with green tea supplementation on some of metabolic and body composition indices of obese women.

In the semi-experimental study, 30 inactive obese women, purposefully, based on body mass index (BMI) were randomly divided into 3 groups of 10 people. They were rhythmic aerobic exercise with green tea supplement group (Experimental1, BMI:35.69±2.28 kg/m2), rhythmic aerobic exercise group (Experimental2, BMI:36.18±2.25 kg/m2) and control group (BMI:34.65±3.02 kg/m2). The rhythmic aerobic exercise protocol was performed 8 weeks and 3 sessions per week for both experimental groups. The supplement group received one capsule containing 500 mg of green tea daily. Metabolic and body composition indices were measured in pre-test and post-test stages. Paired t-tests, covariance analysis and bonferroni post hoc test were used for data analysis (p<0.05).

Eight weeks of rhythmicaerobic exercise with and without green tea supplement led to significant decrease (p<0.05) in body weight and BMI (both of them respectivly 3%,2%), waist circumference(respectivly 4%,1%), serum glucose(respectively 7%,5%), triglyceride (respectively 11%,4%) and malondialdehyde (MDA) (respectivly 25%,9%).

However, rhythmic aerobic exercise improved body composition and serum levels of triglycerides, glucose and MDA in obese women; rhythmic aerobic exercise with green tea supplement had a more significant effect on the waist circumference, serum levels of triglyceride and MDA.

In addition to antioxidant compounds, green tea has anti-diabetic antibacterial, anti-inflammatory, anti-fibrotic and anti-obesity properties. So, this study aimed to investigate the effect of 8- weeks of aerobic training and green tea supplementation on aerobic capacity, body mass index and fat percentage in obese and overweight officers students.

In this quasi-experimental study, which was conducted in 2018 at Imam Ali Officer University, 60 subjects with age range 18-22 years and BMI greater than 25 kg / m2 were selected by available convenience sampling method; They were divided randomly into 4 groups: aerobic training (n=13), green tea supplement (n=18), aerobic training + green tea supplement (n=16) and control groups (n=13). Aerobic training program included aerobic training 45-60 minutes at 60-80% maximum heart rate, three sessions per week which lasted for 8 weeks. Green tea supplement group while maintaining their diet 2 hours after each meal brewed 2 g dry green tea in 150cc Boiling water in three meals in the morning, noon and evening consumed. The aerobic capacity, body mass index and fat percentage of the participants in the two stages before and after the training protocol were also measured. A one-way statistical analysis of the variance test (ANOVA) was used to significantly compare the groups, and a Tukey follow-up test was used to significantly compare the pairs of groups.

Eight weeks of aerobic training significantly reduced body weight, body mass index and body fat percentage (P<0.05) and green tea supplementation significantly reduced body weight and body mass index (P<0.05). Also, the combination of aerobic training and green tea supplementation, in addition to weight loss, body mass index and body fat percentage, resulted in a significant increase in aerobic capacity (P<0.05).

Considering that the combination of aerobic training and green tea supplementation reduces the body mass index, fat percentage and increases aerobic capacity among officer students. It is therefore a valuable non-pharmacological strategy for realizing and improving research parameters.