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List of Articles
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Open Access Article
1 - The effect of a passive activity session on cardio-respiratory performance indicators in sedentry young men
Ebrahim Ahmadian Hiran Marafat siahkohian Reza Farzizadeh Mohammad GhaderiObjective: Inactive lifestyle is related to inefficient cardiorespiratory function. The purpose of the research was to compare the changes in cardiorespiratory performance indicators of inactive youth during a session of passive activity.research methodology:This study MoreObjective: Inactive lifestyle is related to inefficient cardiorespiratory function. The purpose of the research was to compare the changes in cardiorespiratory performance indicators of inactive youth during a session of passive activity.research methodology:This study is a semi-experimental type and the statistical population of the current study includes inactive students with an average age of 22.07 ± 1.86 years, height 173.71 ± 5.63, weight 11.24 ± 70, body mass 23.32 ± 3.61) of the university Ardabili researcher. Among them, 28 inactive young people were selected as research subjects. Cardio-respiratory fitness of the subjects was measured using the aerobic aerobic test with an intensity of 75 to 85% of the maximum heart rate. Cardio-respiratory indices were measured by a respiratory gas analysis device.Findings: The findings of this research showed that a session of exercise had a significant effect on the values of cardiac and respiratory indicators (heart rate (RR), maximum oxygen ventilation equivalent (EQO2), carbon dioxide ventilation equivalent (EQCO2), tidal volume). (VT) and pulmonary ventilation (VE)) expiratory carbon dioxide partial pressure (PETCO2), expiratory oxygen partial pressure (PETO2)) during different pre-activity stages, aerobic threshold, active rest and anaerobic threshold, there is a significant difference (>0.05) P).Conclusion: According to the obtained results, it seems that an activity session of a helpless type that causes incremental changes in the values of cardio-respiratory and functional heart indices, and can be a suitable criterion for estimating cardio-respiratory fitness in low-income students. be mobility Manuscript profile -
Open Access Article
2 - Association of ACTN3 Gene Polymorphism Strength performance of Adolescent wrestlers in Ardabil
Mohammad GhaderiObjective: Both "environment" and "genetics" are considered as essential factors for the athletic performance of elite people. The aim of this study was to investigate the relationship between ACTN3 gene polymorphism and strength performance in novice junior wrestlers i MoreObjective: Both "environment" and "genetics" are considered as essential factors for the athletic performance of elite people. The aim of this study was to investigate the relationship between ACTN3 gene polymorphism and strength performance in novice junior wrestlers in Ardabil.Methods: The statistical sample of this study was 15 beginner juvenile wrestlers in Ardabil in the age range of 11-16 years. Subjects had a history of 6 months to 1 year. Measured athletic performance included upper body strength (pre-chest test) and lower body strength (Scott test). ACTN3 gene polymorphism was determined and compared using salivary samples using polymerase chain reaction and direct DNA sequencing (Tetra-ARMs PCR). After examining the normality and homogeneity of the data, independent group t-test and chi-square test were used for analysis. Results: The results of the present study showed that a significant difference was observed in the frequency of ACTN3 gene polymorphism in beginner juvenile wrestlers. The frequency of polymorphisms was higher in healthy homozygous (RR) and heterozygous (RX) genotypes, respectively (n = 12 (RR) and n = n (RX), P = 0.001). The results of t-test analysis of independent groups showed a significant discrepancy between upper and lower body strength performance indices between polymorphisms (RR, RX) (upper body: P = 0.3, lower body strength: P = 0.4).Conclusion: In the present study, the results showed the superiority of healthy homozygous (RR) genotype in ACTN3 gene of novice male adolescent wrestlers in Ardabil, and despite the significant difference in strength performance indices between the two genotypes (RR and RX); However, due to the high strength performance in the RR genotype compared to the RX, it can be said that this genotype can be considered as an important factor in talent identification in juvenile wrestlers, especially in mountainous areas. Manuscript profile -
Open Access Article
3 - The effect of four weeks of high-intensity interval training with different volumes on IL-6, TNF-α and hs-CRP in overweight and obese young girls.
rasoul dokhtabdiyan azizeh ahmadiThe purpose of this study is to compare the effect of four weeks of high-intensity interval training with different volumes on IL-6, TNF-α and hs-CRP in overweight and obese young girls. 24 girls (BMI>25 kg/m) were randomly placed in three groups: HIIT1 group ( MoreThe purpose of this study is to compare the effect of four weeks of high-intensity interval training with different volumes on IL-6, TNF-α and hs-CRP in overweight and obese young girls. 24 girls (BMI>25 kg/m) were randomly placed in three groups: HIIT1 group (n=8), HIIT2 group (n=8) and control group (n=8). HIIT1 group performed four sets of 30 seconds of running with an intensity of 19-20 RPE, two minutes of rest between sets in each session. HIIT2 group performed four sets of 60 seconds of running with the same intensity and four minutes of rest between sets. training was performed three sessions a week for four weeks. Blood samples were evaluated to measure serum levels of IL-6, TNF-α and hs-CRP 48 hours before and 48 hours after training. To analyze the data . Mixed analysis of variance (ANOVA) test was used at a significant level (P<0.05). hs-CRP level significantly increased only in the HIIT2 group (p<0.05). No significant difference was observed between the groups (p=0.377). The IL-6 significantly decreased only in the HIIT2 group (p<0.05). A significant difference was observed only between the HIIT2 group and the control group (p=0.031). The mean of TNF-α showed a significant decrease only in the HIIT2 group (p<0.05). a significant difference was observed between the HIIT2 group and the control group (p=0.042). It seems that medium-term HIIT training reduces inflammatory indicators (IL-6, TNF-α) compared to short-term and probably has a role in reducing the incidence of heart and metabolic diseases in these people. Manuscript profile -
Open Access Article
4 - 1. The intensity order of resistance training (Low to high vs. high to low) does not have effect on obestatin and ghrelin changes in obese women
Kamal Azizbeigi Niusha HasaniAim: Exercise training (ET) may affect appetite-regulating factors. The purpose of current study was to investigate the effect of order of resistance training (RT) on ghrelin and obstatin hormones changes in obese women. Methods: For this purpose, 30 obese female subjec MoreAim: Exercise training (ET) may affect appetite-regulating factors. The purpose of current study was to investigate the effect of order of resistance training (RT) on ghrelin and obstatin hormones changes in obese women. Methods: For this purpose, 30 obese female subjects voluntarily participated in the present study and were randomly assigned to three resistance training: pyramid (Low to high; n=10), Oxford (high to low; n=10) and control (n=10).RT was performed in three non-consecutive sessions per week for eight weeks.Before starting the exercise training program, and 72 hours after the last training session, blood sampling was gathered and the ghrelin and obstatin hormones concentration in plasma were measured. Also, changes in body fat percentage (BF %) were measured by skinfold test. Results: The results showed that there was no significant difference between pyramid and Oxford RT in the ghrelin and obstatin in the interaction between the effect of time (exercise) (p>0.05). Conclusion: Finally, it can be said that intensity order of resistance training as form pyramid and Oxford is not effective on appetite regulating hormones. This issue can be used in the designing of resistance exercise program and weight control. Manuscript profile -
Open Access Article
5 - A Survey on the Planning Type of Sport Planning on the Social and Adaptive Performance
omid safari fatemeha hoseni hadish ghasmyan aslThe purpose of this research is to study the type of sports planning on the social and adaptive performance of university girls in Yasouj city. The statistical population of the research is 421 university girls of Yasouj city. Of these, 200 people were selected as sampl MoreThe purpose of this research is to study the type of sports planning on the social and adaptive performance of university girls in Yasouj city. The statistical population of the research is 421 university girls of Yasouj city. Of these, 200 people were selected as samples. The measuring instrument was a researcher-made questionnaire. According to the research findings, there was a significant correlation of 0.62 between sports planning and social and adaptive performance of university girls in Yasouj city. There was a significant correlation of 0.47 between sports planning on increasing social and adaptive skills among college girls in Yasouj city. There was a significant correlation of 0.62 between sports planning and doing household tasks among university girls in Yasouj city. Also, there was a significant correlation of 0.60 between sports planning and self-care among college girls in Yasouj city (significance level 95%).n sports planning and self-care among college girls in Yasouj city (significance level 95%). Manuscript profile -
Open Access Article
6 - Which factor has more influence on musculoskeletal disorders of computer users? Physical activity or Office ergonomics
shahrzad masoumiIntroduction: Today, with the advancement of technology, computer users are more prone to musculoskeletal disorders than other employees in any organization. The existence of a relationship between musculoskeletal disorders, especially low back pain, and sitting posture MoreIntroduction: Today, with the advancement of technology, computer users are more prone to musculoskeletal disorders than other employees in any organization. The existence of a relationship between musculoskeletal disorders, especially low back pain, and sitting posture in workplace has been confirmed. Therefore, the aim of this study was to investigate the relationship between physical activity level and office ergonomics with the prevalence of musculoskeletal disorders in female computer users of Islamic Azad University of Rasht.Methods: The present study was a descriptive-analytical cross-sectional study with the cooperation of 39 female employees of the Islamic Azad University of Rasht. The data collection tool in this study was questionnaire. Beck Physical Activity Questionnaire (BPAQ), Rapid Administrative Stress Assessment (ROSA) and Nordic Questionnaire were used to assess the variables of physical activity level; office ergonomics and the prevalence of musculoskeletal disorders. Data were analyzed using SPSS version 24 and Chi-square statistical tests.Results: The results showed that there was no significant relationship between physical activity and musculoskeletal disorders, but a significant relationship was observed between the ergonomics of the subjects workplace environment and musculoskeletal disorders. Subjects who scored in alert areas and ergonomic intervention needs on ROSA assessment, reported musculoskeletal disorders.Discussion: generally, the results of the present study showed that physical activity does not prevent the occurrence of musculoskeletal disorders in computer users, but ergonomic situation in the workplace, plays a major role in the prevalence of these disorders. Manuscript profile
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