Leila Esazadeh, Rambod Khajeie, Alireza Hosseinikakhk,
Volume 14, Issue 6 (Nov-Dec 2020)
Abstract
Background and objectives: It has been suggested that concurrent training (CT) improves both health and performance during aging. However, possible effects of CT order have not been evaluated in menopausal women. Therefore, the aim of this study was to evaluate effects of CT order on follistatin, physical fitness factors and functional capacity of postmenopausal women.
Methods: In this semi-experimental study, 33 healthy, sedentary, postmenopausal women were divided into three groups of endurance training-resistance training (ET+RT; n=11), resistance training-endurance training (RT+ET; n=10) and control (C; n= 12). The training exercises were performed three times a week for eight weeks.
Results: Weight and body fat percentage did not differ significantly between the groups (P>0.05). Muscular strength, endurance and aerobic capacity increased significantly in both training groups (P<0.05). However, there was no significant difference between the effects of the training orders. There was a significant time × group interaction regarding the follistatin levels after the CT intervention. However, there was no significant difference in the follistatin levels between the groups.
Conclusion: Based on the results, the order of eight weeks of CT training does not significantly affect body fat percentage, physical fitness factors and functional capacity of postmenopausal women. However, the percentage changes in the mentioned variables are higher in the ET+RT exercise order.
Rokhsareh Moosavi, Amir Rashidlamir, Rambod Khajeie, Mahmoud Hejazi,
Volume 15, Issue 2 (Mar-Apr 2021)
Abstract
Background and objectives: Cardiovascular disease is one of the most important causes of mortality worldwide. The present study aimed to compare two different cardiac rehabilitation protocols on ATP-binding cassette sub-family G member 1 (ABCG1) lymphocyte expression and blood lipid profile in middle-aged men undergoing coronary artery bypass grafting.
Methods: Forty five middle-aged men who had previously undergone coronary artery bypass surgery were randomly divided into three groups of control (C; n=15), aerobic training (AT; n=15) and combined training (CT; n=15). Blood samples were taken before the first and after the last exercise sessions. After isolation of mononuclear cells using Ficoll and mRNA purification, gene expression changes were examined by real-time PCR. Data were analyzed using one-way ANOVA and Bonferroni post-hoc tests.
Results: Eight weeks of training intervention resulted in a significant increase in ABCG1 expression as well as a significant decrease in plasma levels of LDL, triglyceride and total cholesterol in both training groups. However, there was no significant difference between the AT and CT groups. In addition, high-density lipoprotein was significantly increased in the AT and CT groups.
Conclusion: Both AT and CT can increase plasma LDL and increase ABCG1 expression and HDL concentrations, indicating the positive effects of both interventions on the prevention of atherosclerosis.
Seyed Mojtaba Hosseini, Amene Barjaste Yazdi, Rambod Khajeie, Amir Rashidlamir,
Volume 16, Issue 5 (Sep-Oct 2022)
Abstract
Background and objectives: In recent years, exercise immunology studies have focused on key components of immune function, such as immune cells, immunoglobulins, and messenger molecules, as well as the effects of environmental and exercise factors. The aim of this study was to evaluate effects of 8 weeks of selected training on serum levels of interleukin (IL)-4, IL-6, and motor performance in elite water polo players.
Methods: For this purpose, 20 male water polo players (mean age: 23 years) were randomly divided into an experimental group (n=10, selected water polo training) and a control group (n=10, traditional water polo training). The selected water polo training was performed for 8 weeks, 6 sessions per week. The intensity of training was controlled using maximum heart rate (80-100%) and increased by 5% every week. Water polo performance tests included a record of 50 meters swimming, 100 meters high swimming, 200 meters’ breaststroke, 6 ×50 meters swimming, and 400 meters swimming. To evaluate the serum levels of IL-6 and IL-4, venous blood (5 ml) was taken in the pretest and posttest stages. The serum levels of IL-4 and IL-6 were measured by sandwich enzyme-linked immunosorbent assay. Mean values were compared using the t-test, at significant level of 0.05.
Results: The selected water polo training significantly changed IL-4 levels in elite water polo players (p<0.05). However, IL-6 levels and performance of the subjects did not change significantly.
Conclusion: The selected swimming exercises could relatively improve swimming stagnation of water polo players. However, due to the limited knowledge in this regard, there is a need for further research.
