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Background & aim: Obesity is accompanied with a lot of metabolic disorders such as changing Adipokines like Chemerin. The present study evaluated the effects of endurance and resistance training on Plasma levels of chemerin and Factors related to obesity in overweight and obese females. Methods: In this study 34 overweight and obese females with an average of age (22.29±2.49 years), body mass index (BMI) (30.19±2.79 kg/m2), weight (77.23±10 kg) participated voluntarily and were randomly assigned into two experimental groups (n=12) and one control group (n=10). Endurance and resistance training groups trained for 8 weeks (4 days a week), respectively with intensity of 65 to 80% maximum heart rate (HRmax) and 65 to 80% one repetition maximum (1RM). In two steps of pre-test and post-test, after 12 hours of fasting, the blood samples were collected in the same conditions and ELIZA method was used to assess Plasma levels of Chemerin. Kolmogorov-Smirnove test was used to evaluate the normal distribution of data, the variation within groups using paired t-test and variation between groups analysis of variance (ANOVA) and LSD were used in significant level (P<0.05). Results: Plasma Chemerin decreased significantly after 8 weeks of training in endurance group (P<0.05), but there was no significant change in resistance group (P>0.05). Also In the experimental groups, factors related to obesity (weight, fat mass, WHR and BMI) were significantly decreased while the maximum oxygen consumption were significantly increased (P<0.05). Conclusions: Both endurance and resistance training, improved Factors related to Obesity and maximum oxygen consumption, but endurance training with a significant reduction in plasma chemerin, has a more effective role in health and reducing inflammation in overweight and obese females.

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Background & Aim: Chemerin is a new adipocytokine which has recently been discovered and has an important role in the metabolic syndrome. It plays a role in the regulation of adiposite and glucose metabolism of liver and skeletal muscle. In the present study the effect of a three-month intensive intermittent training on plasma chemerin and some factors related to body composition on overweight males was investigated. Methods: The present Quasi-experimental designed study used pre-test post-test for control and experimental groups. Twenty students of Kashan University of Medical Sciences with BMIs between 25 and 30 kg / m2, were purposefully selected and randomly and equally put in the experimental group with mean of (age: 22.40±4.49, weight: 93.60±4.64, height: 177±4.49) and in the control group with mean of (age: 22.60±1.42, weight: 93.20±3.15, height: 176.30±3.94). Experimental group practiced in a high-intensity interval training program for 12 weeks, 3 sessions per week with an intensity of 90% maximum heart rate. Before and after exercise, plasma chemerin levels, weight, body fat percentage, body mass index and waist-hip ratio (WHR) were calculated. Kolmogorov-Smirnov test was used for the normalization of the data. For within-group and between-group differences t-test (dependent and independent, respectively) was run (P≤ 0.05). Results: Results showed that three-month of high-intensity interval training of running had a significant effect on decreasing the plasma chemerin levels, body weight, body fat percentage, BMI (P=0/0001), and WHR (P=0/012) in the experimental group compared to control group. Significant differences were observed for within group (P≤0/05). Conclusion: It seemed that three-month of high-intensity interval training as a non-invasive and non-pharmaceutical way could have a positive effect on reducing the levels of chemerin and some anthropometric indicators associated with obesity and overweight.

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Background & aim: Adipokines, including omentin and chemerin, are cytokines that are mainly secreted by adipose tissue. The aim of the present study was to investigate the effect of eight weeks of intense aerobic exercise on chemerin and omentin plasma levels in female Sprague Dawely rats.

Methods: In the present experimental study, 35 two-month old Sprague Dawely rats were randomly divided into two groups: control (15 rats) and training (20 rats). The training program included aerobic exercises which were conducted increasingly five times a week for 8 weeks. Blood samples were taken 24 h after the last training session. After eight weeks, an independent t-test and Pearson's correlation coefficient were used for data analysis.

Results: The results showed that there was significant difference between omentin serum levels (p=0.012) and chemerin serum levels (p=0.003) in rats that had undergone exercises with high intensity program as compared to the control group. In addition, no significant correlation was observed between omentin and chemerin levels (p=0.08).

Conclusion: According to the results of the present study as well as the importance of omentin and chemerin level changes, it seems that the training time must be more than 8 weeks and the exercise intensity should be tailored to the individual's fitness level. Otherwise, subjects are not able to perform the exercise program properly.

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Background & aim: Chemerin are novel adipokines that are secreted from adipose tissue and improved insulin sensitive. The purpose of this study was to examine the ffects of rhythmic aerobic exercise plus core stability training on serum chemerin levels and Insulin resistance, glucose levels and body composition of overweight women.
 
Methods: In this quasi-experimental study, 40 healthy women aged 25-45, waist circumference equal to and above 88 cm, body mass index of 3025 kg / m2 were selected and randomly divided into control (n = 16) and experimental (n = 19) groups. ). Five people were excluded from the study. The experimental group was trained 12 weeks (3 sessions per week per session). The exercise program included aerobic exercise (55% -80%), maximum heart rate, and trunk stability training. The pre-test and post-test stages were collected at 12-hour fasting time, blood samples were collected in the same conditions. The ELISA method was used to determine the fasting and low-level insulin levels. Insulin resistance was evaluated based on the evaluation of HOMA-IR model of homeostasis. To compare the pre-test and post-test changes, the dependent t-test was used and the inter-group variations of one-way ANOVA with a significant level (p≤0.05) were used.
 
Results: Chemerin plasma levels, body mass index, weight, body fat percentage and The ratio of waist circumference to hip In Overweight After 12 weeks Rhythmic aerobic exercise Along with Trunk stability exercises Showed a significant reduction )p≤0/05). But insulin resistance The fasting plasma glucose and Insulin levels between two groups Practice and Control was no significant difference (p>0/05).
 
Conclusion: Despite the fact that this kind of intervention can be an effective treatment to improve the level of low-fat adipokine and lower body waist circumference, however, a trickier exercise is required to significantly change insulin resistance and glucose levels In women with overweight.