Sports and health nutrition
Bahareh Rahmani; Morteza taheri; khadijeh irandoust
Abstract
Abstract, the aim of the present study was to investigate the effect of cumin intake following partial sleep deprivation (PSD) on the oxidation of carbohydrates and fats and some cardiorespiratory indices in student-athletes.Materials and Methods: The present study was quasi-experimental and the research ...
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Abstract, the aim of the present study was to investigate the effect of cumin intake following partial sleep deprivation (PSD) on the oxidation of carbohydrates and fats and some cardiorespiratory indices in student-athletes.Materials and Methods: The present study was quasi-experimental and the research design was cross-sectional. The statistical population included all female student-athletes of Imam Khomeini International university (Age: 18-25 years), of whom 8 students were chosen based on convenience sampling method (Age: 20.01± 53 0.53; height 163.50± 6.57 cm;, weight 56.54± 2 2.54 kg; body mass index 21.19 ± 1.85 kg / m2; maximum oxygen consumption 87 58.30±5.5 kg / min and heart rate 93.63 ±5.15 beats per minute). The main group consisted of 8 subjects who were initially tested as a control group; they were then tested again as placebo and supplement groups after a seven-day wash out period, respectively. PSD was performed for 4 hours the night before the test. Exhaustion was measured and recorded by Bruce treadmill test; cardiorespiratory parameters, carbohydrate and fat oxidation were analyzed by gas analyzer. Results: The results suggested that carbohydrate oxidation increased at the time of maximum oxygen consumption (Vo2max) in the cumin supplement group (p≤0.05). Carbohydrate oxidation and respiratory exchange ratio also increased at the time of anaerobic threshold and Vo2max in cumin supplement group (p≤0.05). Conclusion: In summary, it can be said that taking cumin pills improves the performance of sleep deprived athletes.
Sports and health nutrition
Fatemeh Kazeminasab
Abstract
Background: The exercise training and vegetarian diets have been accepted as a suitable and non-pharmacological method to improve lifestyle and reduce metabolic diseases, including diabetes and metabolic syndrome. The aim of this study was to investigate the combined effect of aerobic exercise and vegetarian ...
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Background: The exercise training and vegetarian diets have been accepted as a suitable and non-pharmacological method to improve lifestyle and reduce metabolic diseases, including diabetes and metabolic syndrome. The aim of this study was to investigate the combined effect of aerobic exercise and vegetarian diet on insulin resistance factors.Methods: The PubMed, Web of Science, SID, Magiran, and Google scholar databases were searched until February 2022 for English articles. Meta-analyses were performed to compare the impact of aerobic exercise and vegetarian diet on insulin resistance factors (fasting glucose, insulin, and HOMA-IR). Standardized mean differences (SMD), weighted mean differences (WMD), and 95% confidence interval (CI) were calculated using random and fixed effect models. Also, the I2 test was used to determine heterogeneity, and the Funnel plot and Egger tests at a significant level of 0.1 were used to determine publication bias.Results: The results of meta-analysis of 29 studies with 10019 adults, showed that aerobic exercise and vegetarian diet significantly decreased in body weight [WMD=-4.49, (CI: -6.27 to -2.72), p=0.001], fasting serum glucose [SMD=-0.46, (CI: -0.65 to -0.27), p=0.001], serum insulin [SMD=-0.42, (CI: -0.52 to -0.32), p=0.001], and HOMA-IR [WMD=-0.73, (CI: -0.97 to -0.49), p=0.001].Conclusion: The findings of the present meta-analysis show the important role of exercise and vegetarian diet in improving insulin resistance. So, aerobic exercise and vegetarian diet are suggested as a non-drug approach for reducing fasting insulin and glucose for adults.
Sports and health nutrition
Mohammad Rahman Rahimi; Shahin Ketabi; Naeimeh Saeedi
Abstract
Aim: Adipokines are molecules secreted from adipose tissue that are related to insulin resistance, metabolic syndrome, diabetes and cardiovascular diseases. Therefore, the effect of 8 weeks of resistance training along with green tea extract (GTE) supplementation on the concentration of adipokines apelin ...
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Aim: Adipokines are molecules secreted from adipose tissue that are related to insulin resistance, metabolic syndrome, diabetes and cardiovascular diseases. Therefore, the effect of 8 weeks of resistance training along with green tea extract (GTE) supplementation on the concentration of adipokines apelin and chemerin in obese women was investigated.Method: Thirty untrained women with a body mass index (BMI) above 30 kg/m2 were selected from among obese women using a randomized, double-blind, placebo-controlled design method and were divided into three groups including training and green tea extract (GT), training and placebo consumption (PT) and green tea extract consumption (G). GT and G groups took 600 mg.kg-1 of GTE daily and PT group also took 600 mg of placebo for 8 weeks. The resistance training program consisted of 3 sessions per week for 8 weeks (60-70 minutes with an intensity of 65% to 80% of a one repetition maximum). Serum level of adipokines was measured using ELISA method.Results: The results of ANOVA with repeated measures indicate a significant decrease in serum levels of apelin and chemerin in GT and PT groups compared to G. Also, a significant decrease in the level of these adipokines was observed in the post-test compared to the pre-test in all three groups. Conclusion: 8 weeks of GTE intake and resistance training decreased inflammatory adipokines in obese women, and the combinatory effect of resistance training with GTE was more effective than the other two conditions.
