دیاکو حیدری

The purpose of this study is to compare the performance indicators between different football positions using the Global Positioning System (GPS) in Iranian Premier League football players. This is quasi-experimental study. To conduct this research, 18 football players who are members of a club in the Iranian Premier League were selected as the available sample, and the players were divided into 6 groups based on the game post. Then the data related to the players' performance (total distance, distance traveled with maximum speed, duration of maximum speed, maximum speed, sprints, number of accelerations, and number of decelerations) in 6 consecutive matches Collected using Global Positioning System (GPS). Also, one-way ANOVA analysis and SPSS software were used for data analysis at a significant level (α = 0.05). Based on the findings of the present study, between different football positions for the variables of total distance (P≤0.00), distance traveled at maximum speed (P≤0.00), duration of maximum speed (P≤0.00), maximum speed (P≤0.00), sprints (P≤0.00), number of accelerations (P≤0.00) and number of decelerations (P≤0.00) there are significant differences. There are many fundamental differences between the performance indicators of different football positions with each other it is necessary to recognize these differences and it is necessary to consider special exercises according to the physiological needs of each post.

Purpose: In this study, we investigated the effects of resistance training types on clinical and functional indices in older individuals with Osteosarcopenia. Method: In this Systematic Review study, a systematic searching strategy was used in information databases such as Pub Med, Web of Science, Scopus, Google Scholar, Cochrane, and Ambace, all of the studies were extracted by using specific keywords such as Strength exercise, Exercise training, Resistance exercise, Resistance training, Strength training, Physical activity, Osteosarcopenia, Aging, Older adult, Elderly which were published on 7th August 2023. After all preliminary screening, surveying of complete text, and assessment of critical studies, scrutinized articles were related to inclusion criteria. Finally, 17 papers were selected for this study. Results: According to the present study, Resistance training for Osteosarcopenia older individuals has an effective result to improve Osteosarcopenia risk factors, and older patients’ performance and clinical status. However, it has to be mentioned that it needs further study in the contexts of Resistance training and Osteosarcopenia syndrome in elderly adults. Conclusion: Resistance exercise training has markedly beneficial effects on elderly patients with Osteosarcopenia which improves Sarcopenia risk factors, and older patients’ performance, clinical status and function of elderly patients.

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.