درخت حوزه‌های تخصصی

Purpose: The objective of this study is to analyse various articles on the effect of various types of exercise on the angiopoietins family and angiopoietin-like proteins (ANGPTLs). Methods: PubMed, Science Direct, Scopus and Google Scholar databases were searched from 2000 to September 2020. After screening the articles, 19 articles that met the inclusion criteria were studied and analysed. Results: In our body, four types of angiopoietin and eight types of angiopoietin-like proteins have been identified, the functional method of some of them which are still not entirely understood. Angiopoietin-1 and angiopoietin-2 are essential regulators of vascular formation and maintenance. Angiopoietin-1 is found in perivascular and vascular cells within and around smooth muscle cells and plays an important role in growth, vascular stability, and pathological angiogenesis. On the other hand, angiopoietin-2 and angiopoietin-3 are mainly involved in inducing vascular regression, cell death, and inflammation. Angiopoietin-4, like angiopoietin-1, is responsible for the maturation, stabilization, and stasis of blood vessels. Conclusion: Studies show that exercise has a significant effect on increasing capillary density in the human body by increasing angiopoietin as one of the angiogenesis factors. In addition, there are many other benefits such as contribution to fat burning and treatment of coronary artery disease, cancer, asthma, and ischemia. More research is needed on the effects of different types of exercise training on angiopoietins.

Background: Autism Spectrum Quotient (AQ) functions as an evaluative instrument designed to assess traits associated with autism. Variances exist within the brain of individuals on the autism spectrum. Moreover, certain exercises have the potential to impact specific regions of the brain. Aim: This study aims to investigate how the program training of this study impact Autism—Spectrum Quotient. Materials and Methods: Forty-two children aged 7-10 years with ASD were recruited to participate in this study. These children were randomly divided into two groups: the control group (N=10, 7.80±1.35 years) and the experimental group (N=32, age: 8.16±1.16 years). The experimental group underwent an 8-week training program. The Autism Spectrum Quotient (ASQ) questionnaire was used to assess the participants' scores in the pretest and posttest. This questionnaire consists of five subscales: social skills, attention switching, attention to details, communication, and imagination, as well as a total score. Results: Based on the results, the program training had an impact on attention to detail (P=0.017) and social skills (P=0.057). However, there was no significant difference between the pretest and posttest scores for attention switching (P=0.096), communication (P=0.07), and imagination (P=0.161). Conclusion: Based on the results, we can conclude that the program had a small but significant effect in terms of quantity. Due to the specific and unique structure of the brain, it takes time to achieve a substantial impact.

The purpose of this study was to investigate the relationship between narcissism and coping strategies with competitive stress in elite athletes. This research was a descriptive-correlation research method (structural equation modeling). In terms of purpose, the present study was an applied type of research and, in terms of time, was a kind of future research. The statistical population of this study was all elite male and female athletes of East Azarbaijan province in two age groups of youth and adults from team who participated in the championship of 2019. According to the Cochran formula 270 athletes were selected as a sample size. To collect demographic information and measure variables, Individual information form, narcissism and coping strategies in sports competition questionnaires were used. Kolmogorov-Smirnov test (KS) was used to verify the natural distribution of data, Cronbach's alpha coefficient to calculate the internal consistency of instrument, Pearson correlation coefficient to determine the correlation between variables, Confirmatory factor analysis (CFA) was used to study the structural equation modeling and (SEM) models to test the fitting of the base model with the data and to determine the structural relationships between the variables at 95 confidence level, using SPSS22 and Liserl software version 8.53. The results showed that pride had with the greatest impact and the most important role on thought control strategy, imagery, logical analysis, search support, evacuation of unpleasant emotions, distraction of mind and surrender/withdrawal. To be Right had the greatest impact and the most important role on relaxation strategy, efforts to deal with competitive stress in elite athletes.

The purpose of this study was to compare the brand communication dimensions in the clothing and footwear industry. This research was descriptive-correlational and its statistical population consisted of consumers of footwear and sports clothing in Iran. The statistical sample was estimated according to the Cochran formula. Finally, 379 questionnaires were used to analyse the data. The findings of this study showed that all the paths except for the effect of brand experience on satisfaction in both industries and the effect of experience on loyalty in the shoe industry was significant. The role of mediator of brand loyalty and satisfaction in all directions, except the path of brand experience to loyalty, has been confirmed in the sports shoes industry. Comparing the two proposed models, only trust path on brand satisfaction, had a significant difference between the sports shoes industry and the sports clothing industry.

Purpose: Skin is the most important organ of the body and maintains its integrity is critical in good health. Severe skin damage is life-threatening and repairing restores its tissue integrity and delay in it endangers health. According to the importance of wound healing and the fact that not treated wounds may decrease quality of life, many studies have investigated the effect of some natural and chemical substance on the length and quality of wound healing to find out beneficial interventions that rapidly and economically treat it. This review aimed to describe the physiology of cutaneous wound healing and some negative and positive factor with a focus on exercise. Methods: An electronic search without any time limitation was performed on the PubMed, Google scholar and web of science databases to find published articles in English. The keywords were wound healing, exercise, and physiology. According to relation to subject, similarities, and differences 48 articles were selected and reviewed. Results: wound healing is a complicated physiology process that consists of four consecutive overlapping stages. Disruption in each stage disturbs wound healing. Many chemical and herbal compounds are used to speed up wound recovery due to their anti-inflammatory property. Exercise is one of the effective factors in wound healing and many studies evaluated effect of different protocol of exercise on it. The results of studies show that aerobic exercise due to its anti-inflammatory and antioxidative effect is a beneficial method in shortening the length of wound healing, especially in aged, fat, and diabetic individuals. Conclusion: Moderate intensity aerobic exercise as a complementary medicine is a good intervention in the treatment of impaired and chronic wounds.