JOURNAL OF SPORT BIOSCIENCE RESEARCHES
Year:2014 | Volume:3 | Issue:12|Papers Count:8

Background & purpose: Today, it is common to use the supplements between the professional and beginner athletes and even non-athletes because of different causes. This study aims to investigate the prevalence rate of dietary & pharmaceutical supplements between swimmer students participating in national championships (Yazd, 2012).Methods: The statistical society of this descriptive research contains 189 swimmers participating in national school championships. The cohort study has been used as the research measuring tool. The frequency percentage, mean, medium, variance and standard deviation were used to describe data and also Spearman correlation coefficient used to study the relationship between variables.Results: Vitamin C, multi vitamin and vitamin E were used in most high rate between the swimmers of this research. The respondents had little awareness about the authorized or non-authorized supplements and medicines and also the pharmacies were the main source to provide these supplements.Conclusion: These research findings concluded the vitamins have used in most high rate between the swimmers of this research. Also, the little awareness of swimmers has required making planning to improve their knowledge in order to use the supplements better and not to use the non-authorized medicines.

The purpose of this study was to compare the total oxygen consumed during maximal exercise after both severe and moderate heat on Tehran's female basketball players. In this study seven elite female basketball players with an average age of 21±25.1 years and mean height in centimeters and weight 166.8±3.27 & 60.85±5.76 kg purposefully through a bunch of basketball teams Tehran province were selected. They participated in two separate sessions of the two protocols heating medium (with 65% of maximum heart rate) and extreme heat (with 85% of maximum heart rate) were performed for six minutes before exercise, After maximal exercise protocols based on the balk and Weber performed until exhaustion. Respiratory indices by gas analysis system were used to measure respiratory 600ZAN model and assessment of body composition Body Composition meter Body in 5.5 Venus model was used. Studies have shown that extreme heat can reduce the total oxygen consumption during exercise and peak athletic performance is better.

Background: The effect of whey protein consumption has shown on appetite control, muscle growth and lipid metabolism in healthy subjects, however, limited data on the effects of whey protein consumption on antioxidant capacity of body and metabolic risk factors in overweight and obese individuals are available. The purpose of this study was to investigate the effects of whey protein supplementation accompanied with resistance training on antioxidant capacity in young men.Methods: The sample the study of 30 young men with an average age of 20.1±16.1 and body mass index 26.88±1.01 kg/m2 were randomly divided into three groups. Groups in addition to the six-week resistance training Whey protein supplements or placebo were. Levels of GSH and TAC Before and after exercise training were measured. Data was analyzed by repeated measures analysis of variance (ANOVA) and Bonferroni post-hoc test.Results: Data analysis revealed six weeks resistance training with both Whey supplement and placebo was significant increase in the level of glutathione and glutathione. In addition, no significant differences in plasma total antioxidant capacity of three experimental groups were observed despite the increase.Conclusion: Whey supplementation for six weeks of resistance training combined with a significant increase in GSH levels and increased plasma antioxidant capacity insignificant young men were overweight.

The purpose of this study was to review the effect of eight weeks strength training on serum levels of adiponectin and cholesterol of 16-18 years old boys.Method: For this purpose 24 male students (16-18 years old) with mean age 16.91±0.92 years, weight 74.19±5.50 kg and height 170.40±5.04 cm voluntarily selected after fill informed consent questioner from high school of Haj Jalil Fallahi of Marvdasht city. Then all subjects randomly divided into two groups: strength training and control. strength training group performed eight weeks of strength training (three days a week) with intensity of 60 -75% of one repetition maximum. There were eight stations in each training session and, each station was performed three sets. In pre and posttest session’s five CC fasting blood samples collected. For statistical analysis used independent and dependent t test (p£0.05).Findings: findings showed that eight weeks strength training has no significant effect on adiponectin (p=0.13) nevertheless induce significant reduction in total cholesterol (p=0.01).Conclusion: regard to finding of this research it concluded that noted training protocol was not effective on improvement of adiponectin nevertheless improved total cholesterol.

Anaerobic power is important for success in sporting activities. The purpose of this study was to compare anaerobic power of lower extremity of students in public and private schools in both the field and Laboratory method. Subjects included 230 female students aged 15-12 years and weigh 54-48 were studied. Sargeant jump was used as field test and squat jump and countermovement jump were used as laboratory tests on the force plate. For statistical analysis were used t- test independent, Pearson correlation and linear regression (p<0.05).Results: in the field test student of private schools had higher anaerobic power lower extremity (p=0.001). Power in Laboratory method was not significantly different between two groups. In addition, there were significant positive correlation between field and laboratory tests anaerobic power peak (r=0.71) anaerobic power mean (r=0.69).Conclusion: in field test students in private school had higher power of lower extremity. Laboratory tests lower extremities power in two group’s werenot significant. Therefore results of these tests are different. However there is a significant positive correlation between two methods. Superiority of Private schools Students may be because of extracurricular activities outside of school these students. Field test of Sargent jump be enough credit in subjects measure anaerobic power test.

The purpose of this study was to compare trunk core stability and flexibility between bodybuilders and non-athletes. 60 subjects participated in this study (30 bodybuilders and 30non-athletes). The subjects were selected between healthy elite bodybuilders and healthy non-athletes. For core stability measuring (flexion, extension and lateral bridge) Mc Gill tests was used. Trunk flexibility in flexion, extension, right and left lateral flexion and right and left rotation was measured by meters. the results showed that the time of flexion stability in bodybuilders were significantly lower than non-athletes (p=0.001) and also flexibility of flexion (p=0.03) and extension (p=0.02) in bodybuilders group was significantly lower than non-athletes, but the range of motion ratio in different direction (Flexion to extension, right and left lateral flexion and right and left rotation) were not significant between two groups (p<0.05). The findings of this study showed that bodybuilders have lower core stability in flexion direction than non-athletes, and lower flexibility in flexion and extension direction than non-athletes, this point.

Background and purpose: aim of present study was to review the effects of aqua extract of saffron with resistance training on testosterone, FSH and LH of rats.Materials and Methods: For these purpose 37 adult male rats weighing 222.58±27.24 selected as sample. Rats were randomly divided into four groups: resistance training (RT five days per week for six weeks), saffron extract (ZS daily 25 mg/kg), resistance training with saffron extract (RT&ZS) and control (Ó) groups. For analyze the results Klomogrof - Smirnov test, one-way ANOVA and Tukey test and software SPSS/20 was used (a=0.05).Results: The results showed that testosterone (p=0.012), FSH (p=0.002) and LH (p=0.014) in the saffron with resistance training group was higher than the control group. FSH (p=0.004), LH (p=0.047) in saffron with resistance training group was higher than saffron extract group also FSH in saffron with resistance training group was higher than saffron group (p=0.015).Conclusion: according to the results of present study six weeks of resistance training and aqua extract of saffron alone have no significant effect on the activity of the reproductive system of male rats, however, combination of resistance training and aqua extract of saffron has significant effect on increasing performance of this system.

Background: The rise and fall of some hormones and accumulation of some disease markers in breast tissue, increases the breast cancer risk. Accumulating data suggest that exercise may affect breast cancer risk and outcomes. The aim of the present study was the effect of aerobic training on CA 15-3 tumor marker of breast cancer, growth hormone and insulin on breast cancer patients.Methods: 24 women breast cancer survivors with mean age 46.67 years in first and second stage of disease which did not use any special medicine, did not have any specific exercise, and underwent chemotherapy and radiotherapy selected and randomly assigned to exercise intervention (n=12) or group (n=12). Subjects of intervention group performed 8 weeks aerobic training with 50-70% Vo2max for 60 to 90 minute (3 sessions per). The control group did no exercise regularly. Before and after eight weeks, all subjects' blood samples were taken. The obtained data were analyzed using Dependent and independent T test.Findings: Results showed that aerobic training didn’t significant change in CA 15-3 (t=1.14, p=0.26), insulin (t=0.92, p=0.36) and growth hormone (t=0.30, p=0.76). There was not significant deference's showed between experimental and control groups in all variables (P³0.05).Conclusion: It appears that aerobic training can adjust some of the factors in recurrence breast cancer and reduce the risk of recurrent.