ABSTRACT
Background and Objective: Adiponectin is one of the adiposaitocines which secret from adipose tissue and is very effective in the pathogenesis of obesity and its associated disorders, especially in elderly people who are at risk for cardiovascular disease. This study was carried out to evaluate the effect of eight weeks of endurance and resistance training on adiponectin level, insulin resistance index in inactive elderly men
Methods: In this quasi-experimental study, 24 inactive elderly men were non-randomly divided into interventional and control groups. The combined training included endurance training [with intensity of 60-70% of maximum heart rate reserve] and resistance training [with intensity of 70% one repetition maximum]. The training performed 3 times per week [one hour session] for 8 weeks
Results: The eight weeks of combined training increased the adiponectin level in interventional group compared to the controls [P<0.05]. Insulin and FBS levels, insulin resistance index, and body fat percentage significantly reduced in interventional group compared to the controls [P<0.05]
Conclusion: The eight weeks of combined training increases the adiponectin level and reduces insulin resistance in elderly men
Subject(s)
Humans , Male , Aged , Aged, 80 and over , Adiponectin/blood , Insulin Resistance , Aged , Resistance TrainingABSTRACT
Introduction: Selectin molecules are responsible for leukocyte adhesion to vascular endothelium. We evaluated the effects of eight weeks high-intensity interval training [HIIT] on Eselectin and P- selectin in obese women
Materials and Methods: In this quasi-experimental study, 16 obese women participants [age: 28.06 +/- 3.62 years, BMI: 31.49 +/- 5.15 kg/m2] using the convenience sampling method, were randomly categorized into two groups [n=8 each], the experimental and the controls. In the trained group, the volunteers participated in 8 weeks HIIT, 3 days/week the HIIT program training included: 45-60 min duration with 90% HRR per session. The Rockport test was used to estimate maximal oxygen consumption. Blood samples were taken from the participants at the beginning end of 8 weeks in order to measure factors such as [E-selectin and P- selectin]. Data were analyzed using paired and independent sample t-test for comparison of means within and between groups respectively, with level of significance set at p:0.05
Results: Weight and BMI levels reduced, although changes were not significant. WHR reduced significantly at the end of the 8 week period [p=0.007] and Vo2max increased significantly. [p=0.00]. In the aerobic exercise group, E-selectin decreased from 89.76 to 84.27 ng per ml and P-selectin from 7.88 to 7.47 ng per ml, again the difference not statistically significant [p>0.05]
Conclusion: Considering reduction in weight and selectin molecules and increased Vo2max, following HIIT training, this can be used in as therapy for management of cardiovascular patients
ABSTRACT
Background and Objective: Several studies have shown that high level of Endothelin-1 and Malondialdehyde lead to an increase in the risk of coronary artery diseases. This study was done to evaluate the effect of aerobic training on Endothelin-1 and Malondialdehyde in inactive elderly women
Methods: In this quasi -experimental study, 21 inactive elderly women with range of 60-70 year nonrandomly divided into experimental [n=11] and control [n=10] groups. The aerobic training including eight weeks aerobic training [with intensity of 50-70 percent of reserve heart rate], 3 times a week, and 60 minutes per session. Endothelin-1 and Malondialdehyde were measured at baseline and at the end of the study
Results: After eight weeks of aerobic exercise, Endothelin-1 level reduced in intervention group [35.96%] and control group [41.09%] [P<0.05]. After eight weeks of aerobic exercise there was no significant difference between intervention and control groups. After eight weeks of aerobic exercise reduce of Malondialdehyde level in intervention and control groups was not significant difference
Conclusion: Regarding to reducing the serum level of Endothelin-1 in in the control and experimental groups, the aerobic training with moderate intensity did not lead to reduce in levels of serum Endothelin-1 in elderly women
ABSTRACT
Cardiovascular disease is the most common cause of death in the world. The aim of this study was to determine the effect of aerobic exercise on serum inflammatory markers in untrained middle-aged women. Nineteen healthy female middle-aged were selected by convenience sampling method and were randomly divided into two experimental [n=11] and control [n=8] groups. The exercise protocol included aerobic exercise training lasted for 6 months and 3 sessions per week and every session lasted for 60 minutes and with intensity of 55-65 percent of maximum heart rate reserve [MHR]. Blood samples were taken to measure serum leptin and C-Reactive Protein [CRP] before and after aerobic training period. General linear- Repeated measures [GL-RM] was used to comparing of within, Interactive and between means groups. The level of significance was set at P< 0.05. The level of serum leptin in middle-aged women did not change significant. However, the levels of CRP during this period did not change significantly. Six months of aerobic exercise does not induce significant change in serum levels of CRP, while leptin levels reduced in middle-aged women. Regular physical activity probably causes decrease in serum leptin level if body mass index and body fat mass reduce simultaneously