Physical Education
fateme falah; farhad rahmani nia; ramin shabani; zahra Hojati Zidashti
Volume 27, Issue 5 , November and December 2020, , Pages 674-682
Abstract
Introduction: In aged women, elevated levels of some proinflammatory markers are risk factors for the development of diseases. The present study investigated the effect of 12-week walking at two different intensities on inflammatory factors in elderly woman.
Materials and Methods: Thirty untrained elderly ...
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Introduction: In aged women, elevated levels of some proinflammatory markers are risk factors for the development of diseases. The present study investigated the effect of 12-week walking at two different intensities on inflammatory factors in elderly woman.
Materials and Methods: Thirty untrained elderly women (60—75 years) randomly divided into three groups. Moderate tempo walking group (MTWG, n=11), Brisk walking group (BWG, n=10), and the control group (CG, n=9). The MTWG, walked at 50—55% maximum heart rate reserve (HRRmax) and the BWG walked at %70-75 HRRmax. Both walking groups trained 12 weeks, 3 sessions per week, starting from 30 to 60 minutes and the CG remained untrained. Maximal oxygen consumption (VO2max), body composition, leukocyte counts (WBC) and plasma levels of Tumor necrosis factor-alpha (TNF-α), were measured before and after the study period. To analyze the data, oneway analysis of variance, Scheffe test and dependent t-test was used (P≤0.05).
Results: VO2max, increased significantly in BWG. Body weights, percent body fat (p =0.000), body mass index (p = 0.003) significantly decreased, and percent muscle (p = 0.000) increased in both exercise groups. Percent visceral fat (p = 0.028) significantly decreased in BWG. Also, BWG showed a significant reduction in WBC counts compared to baseline levels (p = 0.004). There were no significant differences in the plasma levels of TNF-α between the groups.
Conclusion: The results showed that regular walking program can affect body composition in elderly women, however, it may not be effective in reducing systemic inflammatory markers.
Physical Education
Meysam Pourmohamadi; Marzieh Nazari; Ramin Shabani
Volume 27, Issue 2 , July and August 2020, , Pages 227-235
Abstract
Purpose: Intensive, long-term activity can damage the immunity system and cause inflammation. So, a natural anti-inflammatory intermediate like green tea has attracted the interests. The objective of the present study was to examine the impact of green tea consumption and intensive aerobic exercise training ...
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Purpose: Intensive, long-term activity can damage the immunity system and cause inflammation. So, a natural anti-inflammatory intermediate like green tea has attracted the interests. The objective of the present study was to examine the impact of green tea consumption and intensive aerobic exercise training on body composition, creatine phosphokinase and lactate dehydrogenase parameters in sedentary young men.Materials and methods: Thirty-eight sedentary young men (age: 19.87±1.63 years) were participated in study and were randomly divided into four groups: green tea + aerobic training, aerobic training, green tea, and control. The subjects took three mg green tea or placebo a day with their meals. Also, green tea + aerobic training and aerobic training groups had aerobic training with 55-85% of maximum heart beat rate three sessions a week for one month. Blood samples were taken before and after four weeks and 24 hours after El-Estado test and their creatine phosphokinase and lactate dehydrogenase were measured. Data were analyzed with t-paired test and covariance test.Results: It was revealed that fat percentage was significantly lower in green tea group (p < 0.001) but, no significance was observed in other variables.Conclusion: It seems that green tea consumption with regular, short aerobic activities can favorably affect subcutaneous fat percentage.
Physical Education
Fatemeh Rostami; Ramin Shabani
Volume 26, Issue 2 , July and August 2019, , Pages 185-193
Abstract
Background: It seems that exercise training can be effective in improving glucose homeostasis and blood lipids by inducing circulating level of irisin. Therefore, the purpose of this study was to evaluate the effect of eight week aerobic training on serum irisin, blood lipid and blood sugar in untrained ...
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Background: It seems that exercise training can be effective in improving glucose homeostasis and blood lipids by inducing circulating level of irisin. Therefore, the purpose of this study was to evaluate the effect of eight week aerobic training on serum irisin, blood lipid and blood sugar in untrained women. Materials and Methods: This semi- experimental study was conducted on 20 sedentary volunteer women among a university of Rasht city in two groups. The control group conducted the routine daily activities, but the experimental group participated in 65 min aerobic training, three times a week for eight consecutive weeks. Blood lipids, glucose homeostasis and circulating irisin were assessed at baseline, and after 8 weeks of interventions. Data were analyses using SPSS version 22 and A P-value of P< 0.05 was considered statistically significant.Results: In the training group, insulin (p=0.02) and HOMA (p=0.04) were decreased and HDL-C (p=0.00) was increased following 8-weeks of intervention. However, there were no significant changes in fasting blood sugar, triglyceride, cholesterol, LDL-C and irisin (P>0.05). In the control group, fasting blood sugar (p=0.04), insulin (p=0.01), HOMA (p=0.00), triglyceride (p=0.03) and irisin (p=0.03) were increased following 8-weeks of study period. After intervention, participants undergoing exercise training had significantly lower cholesterol (p=0.00), triglyceride (p=0.02), insulin (p=0.00) and HOMA (P=0.00) and higher HDL-C (p=0.00) compared with the control group.Conclusion: It seems that aerobic training in sedentary women is associated with an improvement in glucose homeostasis and HDL-C independently of the irisin changes.