JOURNAL OF SPORT BIOSCIENCE RESEARCHES
Year:2014 | Volume:4 | Issue:14|Papers Count:6

Sedentary lifestyle is associated with less efficient pulmonary function, and so ability of respiratory system and pulmonary function has a direct relationship with general health. There is need to warm up with proper intensity before any exercise. Warm-up exercise have two main functions (i) to prevent injury and (ii) to enhance performance. The purpose of this study was to comparison of two types of severe and moderate warm up effects on the trend of pulmonary ventilation (VE) and ventilatory equivalent of oxygen (VE/VO2) changes during different times in female basketball player. In this study seven elite female basketball players with an average age of 21 ± 25.1 years, height of 166.8 ± 3.27 centimeters and weight of 60.85 ± 5.76 kg selected purposefully among basketball teams of Tehran province. In two separate sessions, subjects performed two moderate (with 65% of maximum heart rate) and severe (with 85% of maximum heart rate) warm up protocols for six minutes before exercise, After warm up. maximal exercise based on the balk and Weber protocols performed until exhaustion. Respiratory indices measured by 600ZAN model gas analysis system. The results showed that the amount of Ventilatory equivalent of oxygen (VE/VO²) during maximal exercise after sever warm up wa significantly higher than average after mode warm up at the times of zero, 3, 6 and 9.

Visfatin is a recently discovered adipokine, which is highly expressed in visceral fat. Physical activity is a good way to lose weight and prevent obesity and the diseases associated with obesity. The aim of this study was comparison effects of 8 weeks selected aerobic training with combined training on serum visfatin levels and insulin resistance in obese inactive women. 24 obese women with mean age of 17.33 years and mean body mass index 31.14 kg m2 volunteered to participate in this study and randomly assigned to three aerobic training (n=8), combined training (n=8) and control (n=8) groups. Training consisted 8 weeks, 3 times a week and 60 minutes for each session. Blood samples were taken before and after exercise protocol. Data were analyzed by one way analysis of variance (ANOVA) using SPSS software. Results showed that visfatin levels in both aerobic training and combined training groups significantly decreased and there was no significant difference between groups. Also, insulin resistance in both aerobic training and combined training groups significantly decreased and there was no significant difference between groups. This study concludes that aerobic and combined training can prevent obesity and diseases associated with obesity, with reduced lipid profile, visfatin levels and insulin resistance.

The objective of the present study was to evaluate the effect of eight weeks aerobic exercises on Adiponectin and lipid profile of women. So 24 inactive female employees in the Shiraz University of Medical Sciences participated voluntarily with the mean age 44.5±5.35 yrs, weight 65.66±13.12 Kg and height 159.1±6.42cm. In order to perform the present research, two groups with pretest and posttest design were applied. Subjects of this study were divided randomly to two control and experimental groups. At first, the Aerobic Power Test was estimated from all subjects, and then they were divided in two similar groups on the basis of Aerobic power. Then, blood samples were taken from all subjects. Experimental groups performed their exercises for 8 weeks. At the end of study period, blood samples were taken again from all subjects. In order to data analysis inferentially, the independent and dependant T-tests were applied.(a £0.05).The results of the study hypothesis test indicated that the Aerobic Exercises for eight weeks had no significant effect on the increase of the Adiponectin, decrease of the total cholesterol , increase of the high –density lipoprotein and Triglycerides but decreases significantly low-density lipoprotein. According to the present study, it is inferred that the Aerobic Exercises for eight weeks with the intensity 55-65% of the reserved heart rate has no significant effect on the changes of Adiponectin and lipid profile of the women.

The purpose of this study was to investigate the effect of creatine supplementation before Sleep deprivation along with light activity and cortisol and catecholamines levels and balance of girls. According to inclusion criteria of this study, 24 female volleyball players were selected and randomly divided into three experimental, placebo, and control group. Static and dynamic balance tested for pre-test by Stork stand test and Star Excursion Balance Test. for analyzing of cortisol and epinephrine and norepinephrine, blood samples were taken. Experimental and placebo groups for a week and 4 times daily (5 grams each time) received creatine and placebo with mild activity. After supplementation with creatine and placebo, Experimental and control groups received stay awake for 24 hours. Then again as a post-test, balance and levels of cortisol and catecholamines were assessed. Results of statistical analysis showed that the effect of creatine supplementation before sleep deprivation along with mild activity, has a significant effect on static and dynamic balance and levels of cortisol and catecholamines of female athletes (0.05>p).

The aim of the present study was the review of a hydrotherapy program’s effect on physical fitness and balance of mentally disabled boys. The subjects of this study were 30 students with mental disabilities and were selected according to the research inclusion criteria and with full knowledge of their parents of the executive phases of the work and were randomly assigned to two experimental and control groups. Before starting the exercise protocol, physical fitness variables (including cardiovascular endurance, shoulder girdle muscular endurance, flexibility, speed, agility, static and dynamic balance) evaluated. The experimental group did their exercises in water for six weeks (three sessions per week) whereas control group had not any athletic activity during the study. Finally, in the end of exercise protocol, tests for evaluation of considered variables repeated. Statistical Tdependent test used to determine the difference between pretest and posttest in each of the experimental and control groups with SPSS program. After analyzing of measured factors, the results showed that doing selected exercises in the water caused significant improvements in the shoulder girdle muscular endurance, flexibility, agility, static and dynamic balance of the experimental group. So it can be stated that this type of exercise can be a effective way for improvement of these people’s physical fitness.

The aim of this study is to evaluate and compare the effect of a variety of voluntary contraction intensity on the vertical jump of Parkour athletes. Twelve Parkour athletes (with an average age of 21.9 ± 2.4 years, and an average weight of 67.8 ± 3.4 kg) who were active in the Kermanshah’s gyms participated voluntarily in the study. Subjects in four days with an interval of 48 hours have done randomly four training status: routine warmup (control condition), routine warm-up along with dynamic half squat with Submaximal intensity (35% 1RM), routine warm-up along with dynamic half squat with the maximum intensity (95% 1RM), and routine warm-up along with dynamic half squat with supra-maximal intensity (120% of 1RM). Four minutes after accomplishment of each Protocol, the vertical jump test was performed by subjects. Analysis of variance with repeated measures was used to analyze the data. The results showed that only the doing a routine warm-up along with dynamic half squat with the maximum intensity causes a significant increase in vertical jump height as compared to the control condition (p=0.02). Also, vertical jump height following routine warm-up along with dynamic half squat with the maximum intensity was significantly more than vertical jump height following routine warm-up along with dynamic half squat with the Submaximal and supra-maximal intensity (respectively p=0.03, p=0.01). Therefore, it can be said that the implementation of the vertical jump after routine warm-up along with dynamic half squat with the maximum intensity brings the best performance for people.