درخت حوزه‌های تخصصی

Purpose: The aim of this study was to compare the effect of eight weeks of aerobic, resistance and combination training on serum levels of irizin, atherogenic index of plasma (AIP) and some cardiovascular risk factors in inactive overweight men. Methods: In this quasi-experimental study, 32 inactive overweight men participated voluntarily and were randomly divided into 4 groups: aerobic training, resistance training, combination training and control. Serum levels of irizin, AIP and lipid profile of subjects were measured before and after eight weeks of exercise. Results : After eight weeks of exercise intervention, irizin levels increased significantly in all three experimental groups (P <0.05). Also, AIP decreased significantly in all three training groups (P <0.05). On the other hand, in examining the differences between groups, a significant difference was observed between the groups in AIP and irisin (P <0.05). Conclusion: The results of the present study showed that eight weeks of exercise training can possibly cause favorable changes in plasma irisin and biochemical parameters of the blood in overweight people. Also, combined training seems to have more favorable effects than other training methods.

Purpose: The world is getting old. Alzheimer's disease is a progressive disease, which in case of no intervention, this ratio reaches 4 more advanced stages in people over 85 years old. Some methods have shown that they can be effective in preventing and slowing down the course of the disease. The purpose of this study was to investigate the role of aerobic exercise program on the quality and some physiological parameters related to sleep in the elderly with Alzheimer's disease. Method: 22 elderly people with Alzheimer's disease were randomly divided into two groups of 11 people: aerobic exercise and control. The subjects in the aerobic training group practiced three sessions every week for twelve weeks and each session lasted for 45 minutes. The sleep quality of the subjects was evaluated by the Pittsburgh Sleep Quality Questionnaire (PSQI). Physiological variables related to sleep (TG, TC, LDL, HDL) were also measured by blood sampling before and after twelve weeks of aerobic exercise Results: The results showed that the sleep quality of the subjects improved by 31% in the Pied Heroi group, which was statistically significant. In addition, there was a significant improvement in the changes of TG (p=0.034), TC (p=0.017), LDL (p=0.006), and HDL (p=0.016) in the aerobic training group. The results of the independent t test also showed that there was a significant difference in sleep quality between the aerobic training and control groups. However, no relationship was observed between changes in sleep quality and changes in physiological variables related to sleep. Conclusion: It can be concluded that twelve weeks of aerobic exercise improves sleep quality along with some physiological parameters related to sleep in the elderly with Alzheimer's disease and will be useful as a way to treat sleep problems in the elderly.

The purpose of the present study was to investigate the mediating role of professional ethics in the relationship of the organizational culture with social responsibility and the organizational commitment in sports organizations. 201 staff of sport and youth departments in Esfahan province completed the research questionnaires through stratified random sampling approach according to geographical distribution. For data analysis, structural equation modeling by Lisrel software was used. Results showed that organizational culture has a positive and significant effect on organizational commitment, by coefficient of 0.36, indirectly according to professional ethics mediator variable and on social responsibility by coefficient of 0.37. According to the research findings the mediator role of professional ethics variable as well as the research conceptual model was confirmed. 

Background: Transmembrane protein fibronectin type III domain-containing protein 5 (FNDC5) is as a myokine, metabolic regulator and potential therapeutic agent which is known as a potential trait for metabolism and obesity. Aim: The purpose of this study was to evaluate the effect of high intensity interval swimming training on circulating irisin and some metabolic syndrome in postmenopausal overweight women. Materials and Methods: Thirty postmenopausal overweight women (55.73 ± 2.66 years, 26.72±2.33 kg/m 2 ) were randomized into high intensity interval swimming training (n=15; HIIT) and control groups (n=15; CON). HIIT performed 6–10×30 s swimming interspersed by 2 min recovery for an 8-week period completing 24±1 session (average heart rate= 0.89±0.029% HRmax). Fasting blood samples were taken and body mass index was measured pre- and post-intervention. Results : In CON, there was not significant change in all measured variables before and after the intervention period. Irisin increased ( P <0.01) by 0.64±0.27 mg/ml in HIIT group. Insulin decreased ( P <0.01) by 0.96±0.36 mg/dl while the blood lipid profile P = 0.78 cholesterol, P =0.14 TG, P =0.10 HDL, P =0.52 LDL, systolic blood pressure ( P = 0.51), dyastolic blood pressure ( P = 0.75), and BMI ( P = 0.87) were unaltered. Conclusion: The result of present study showed that high intensity interval swimming trainings is an effectual and time-efficient training way for increasing irisin, and it can lead to compensatory irisin increases in postmenopausal overweight women.

This study aims to evaluate the seven-a-side football program of the national Paralympic committee (NPC) of Indonesia at the Association of Southeast Asian Nations (ASEAN) Para Games 2015 in Singapore. The study used a qualitative method to fulfill the research objectives, using the Context Input Process Product (CIPP) model, a data of questionnaires, as well as observation method. The result showed that evaluation of context including a legal basis and strong government policy, the vision, mission, and goals has been fulfilled. The evaluation of input that denotes recruitment process of good athletes and coaches are going well. Evaluation of process that includes the training plan has been implemented well, but the implementation of training, assessment exercises, evaluation and monitoring need to be optimized. The evaluation of product involves athletes’ performance in Difabel event that has not been implemented optimally with three defeats and one draw, so they were runners-up in the ASEAN Para Games 2015 in Singapore. According to the findings, the planning of the development program for seven-a-side football athletes at the ASEAN Para Games 2015 in Singapore is solidly legal. Therefore, this program needs a comprehensive evaluation to achieve better results in future.