Samaneh Mirzaee; Noreddin Karimi; Fereshteh Ghorat; Robab Sahhaf; Ali Samadi; Mostafa Rahimi; Mostafa Gholi Saberian
Volume 21, Issue 3 , July and August 2014, , Pages 402-415
Abstract
Background: The aim of this study was to evaluate the short-term effects of creatine supplementation in combination with vibration exercise on physical fitness and neuromuscular performance of elderly women.
Materials and Methods: The study population included women aged over 60 years. For this purpose, ...
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Background: The aim of this study was to evaluate the short-term effects of creatine supplementation in combination with vibration exercise on physical fitness and neuromuscular performance of elderly women.
Materials and Methods: The study population included women aged over 60 years. For this purpose, 22 healthy elderly females were selected and randomly divided into three groups: vibration exercise with creatine supplementation (n=8), vibration exercise with placebo (n=7), and control (n=7) groups. Vibration exercise with creatine supplementation group, performed exercises which included six posture exercises, based on the principle of overload, for 10 days, with a frequency of 30-35 Hz and amplitude of 5 mm; and at the same time, received 20 grams creatine, for the first 5-day, and 5 grams creatine, for the later 5-day, daily. Vibration exercise with placebo group, instead of creatine, received dextrose. Evaluation factors were the static strength of hands and feet (dynamometer), the dynamic power of leg (knee open device), the static balance (standing on one leg), and dynamic balance (lifted and walking), the lower body performance (30 meters walk, tandem gate and get up and sit on a chair), and flexibility (sit and delivery). ANOVA and analysis of covariance statistical tests were used to examine the main effects; and post hoc Tukey and Sidak tests, were used to compare pairs of groups (P≤0.05).
Results: The results of ANOVA showed that there was no significant difference between the groups in the static power (P=0.89), lower body function in tandem gate test (P=0.25), and flexibility (P=0.59); but the static power and performance of leg in 30-meter walk test, was better in vibration exercise with creatine supplementation group than the control group (P
Hoda Khorram; Aloasghar Ravasi; Mehdi Hedayati; Ali Samadi; abbasali Gaeini
Volume 20, Issue 3 , September and October 2013, , Pages 389-399
Abstract
Background: Reactive oxygen species have an important role in the development of diabetes and its complications. The purpose of this study was to investigate the effect of eight weeks of resistance training on oxidative stress in heart of diabetic rats.
Material and methods: In an experimental study, ...
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Background: Reactive oxygen species have an important role in the development of diabetes and its complications. The purpose of this study was to investigate the effect of eight weeks of resistance training on oxidative stress in heart of diabetic rats.
Material and methods: In an experimental study, 24 Wistar rats divided into two groups, 1. Resistance training (n = 12), and 2. Control group (n = 12). Induction of diabetes was done by a single intraperitoneal injection of streptozotocin (STZ) at a dose of 50 mg/kg dissolved in phosphate buffer (pH, 4.5). The training protocol consisted of 1 set of 10 climbing with the weight attached to the base of the tail, three times per week and for 8 weeks. Forty eight hours after last training session, animals were anesthetized blood was taken directly from the heart and then the heart removed and left ventricles were isolated and used for biochemical assessments. All the statistical analysis was done by SPSS software version 16. Level of significance was set at α
Abbas Ali Gaeini; Fatemeh Shabkhiz; Ali Samadi; Maryam Khalesi; Fateme Tork
Volume 18, Issue 3 , September and October 2011, , Pages 198-205
Abstract
Background and Purpose: It has been suggested that intracellular adhesion molecules (sICAM-1)، as a new inflammatory marker، are more precise and sensitive markers in predicting cardiovascular diseases، compared with traditional predictive markers. The purpose of this investigation was to study the ...
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Background and Purpose: It has been suggested that intracellular adhesion molecules (sICAM-1)، as a new inflammatory marker، are more precise and sensitive markers in predicting cardiovascular diseases، compared with traditional predictive markers. The purpose of this investigation was to study the effect of discontinuous endurance exercise on sICAM-1 and lipid profile (LDL-C، HDL-C، TG، and TC) of non-athletic male students and to survey the correlation between changes of these variables. Material and methods: This experimental study involved twenty non-athletic male students who signed the written informed consent، and were randomly assigned into experimental (n=12) and control (n=8) groups. The exercise protocol was a graded program، to be performed for 8 weeks three times per week with specific intensity and duration. Blood samples were taken before the first session and after the last session، with 14 hours fasting. Data were analyzed in SPSS 16 using independent and dependent t-test، and Pearson correlation coefficient to determine the correlation of the variables. Level of statistical significance was set at α>0.05. Results: Eight weeks of discontinuous endurance exercise caused 14% decline in sICAM-1 (p=0.0001)، 6% in TC (p=0.001)، 10% in LDL-C (p=0.0001)، 40% in TG (p=0.0001) and 23% increase in HDL-C (p=0.001) in the experimental group. However، there were no significant correlation between sICAM-1 alteration and changes of traditional predictors of cardiovascular diseases (LDL-C، HDL-C، TG، and TC) (p>0.05). Conclusion: Eight weeks of discontinuous endurance exercise may reduce sICAM-1 and improve the lipid profile. These changes can play effective roles in the prevention، control and treatment of atherosclerosis.