---

The word human population has been terrified nay AIDS. The barbers are persons that work with sharp tools. If their instruments become infected, they can transmit the infection to others. Therefore, the purpose of this study is to determine the barber’s knowledge, attitude and performance about AIDS prevention. This project is a descriptive study on 150 selected barbers. The methodology of research was a set up questionnaires, that have been completed by the barbers. The results showed that, their knowledge, performance about the AIDS are moderate (50%, 48.43%) and their attitude are weak. Performance among men and women is significant (P?0.02) in addition correlation between knowledge and attitude, attitude and performance are significant, according to the duration of working as barber (P?0.01). In general knowledge, attitude and performance among barbers are weak, therefore it is suggested that health and hygienic official teach the barbers how to behave in this regard.

---

Background and Objective: Budget reforming and distribution of source is considered as one of economic bases of health and treatment. In the ministry of health, performance based budgeting has been performed since 2000. This study was done to identify barriers of operational treatment budget in Islamic Republic of Iran, ministry of health and medical education. Materials and Methods: In this descriptive study, data were gathered by questionairs to identify the barriers in six parts including: human resource, financial management system, financial information system organization structure, performance measurement system and legal necessities during 2007. The questionnaire were distributed among 80 executive staffs whome were responsible to perform operational budgeting plan. Data were analyzed using SPSS-16, fisher's exact test, Karl Pearson, Spearman correlation coefficient tests and Entropy criterion. Results: Disorder in commitment accontity statistical aconite system (0.1464), financial information system, weakening of quantity and proper index (0.1442) for estimating performance program performance measurement system were identified as major barriers. In organizational structure, assignment of authorities and responsiblies for managers and expert were identified as the most priorities (0.1447) of weakness of exact cost controlling system (0.1450) allocated the most rating in the financial management system. Staff resistance (01449) was with high rating in human resource dimension. weakness of rules and internal guidelines for establishment of mentioned budgeting the highest rate in legal barriers. Conclusion: This study indicated that there is corrolation between financial information, performance measurement, financial management systems, organizational structure human resource with barriers of budgeting establishment.

---

Background and Objective: Rapid and adequate rehydration is important for many athletes, especially those taking multiple sessions of exercise each day, or those involved in weight category sports. The macronutrient and electrolyte concentration of the fluid ingested following exercise can affect the amount retained within the body can influence hydration status. This study was done to compare the effect of milk consumption on healthy young men rehydration and endurance performance after dehydration due to intermittent exercise in warm environmental condition. Methods: In this quasi-experimental study, the labroratory protocol was carried out by ten young healthy men in three sessions within one week intervals. Participants were on drinking regiment including water, low-fat milk, and powerade. Urine samples were collected pre-exercise, post-exercise, post-drinking and 1, 2 and 3 hours over recovery. Exercise capacity test commenced within 10 min after 3h recovery. This was undertaken in warm environmental condition at a power output corresponding to 70% VO2 max. Exercise continued until voluntary exhaustion. Heart rate and RPE were recorded at 5 min intervals throughout exercise. Results: Pre-exercise urine specific gravity value was not different between the milk and the, powerade and the water groups. Total urine output was significantly reduced in the milk group in compared to powerade and the water consumption (P<0.05). At the end of the study, net fluid balance was significantly positive in milk group compared to powerade and water groups (P<0.05). Time of exhaustion on the exercise capacity test (70% VO2 max) was significantly more in milk in comparision with powerade group (P<0.05). Conclusion: Low-fat milk is more effective at rehydrating compared to water and exercise capacity in intermittent activity of heat in healthy young men.

---

Background and Objective: Obesity and overwight affects on respiratory phyological indeces including pulmonary voulume, spirometery function, mechanical function of air ways neuro-muscular functions and capacity of exchange of gases. The obese and overwight subjects have high risk in reduction respiratory valume syndrome. This study was done to compare the effects of three resistance training programs with different intensities on pulmonary function, physical function and body composition in overweight girls.
Methods: In this quasi - experimental study, thirty overweight inactive girls were non-randomly divided into 3 equal groups (n=10) of resistance training with different intensity based on their 1 RM (light, 55-65%, moderate, 65-75%, and heavy, 75-85%, repsctively). The training progams were done for 9 weeks (3 sessions per week). Each session consists of 5 stations with 3 sets while rest intervals between the repetiotions and stations were 60-90 seconds and 90-120 seconds, respectively. Before and after the end of the training programs, spirometry, body composition, muscular strength and endurance of the upper body and VO2max were measured.
Results: 9 weeks resistance training program with 55-65%, 65-75%, and 75-85% 1RM intensities had no significant effect in the spirometry parameters, body weight, body mass index, upper body muscular endurance and VO2max. Fat percentage in 55-65% group significantly reduced in compared to those of 65-75%, and 75-85% 1RM groups (P<0.05). The upper body muscular strength in group with 75-85% 1RM significantly increased in compared to groups with 55-65% and 65-75% 1RM (P<0.05).
Conclusion: Overweight girls can apply resistance training with 55-65% 1RM to reduce the percent of body fat, and enhance the upper body strength through trainings with 75-85% 1RM. In relation to pulmonary function indices and indices of physical function and body composition, there was no dference between three training programs.

---

Background and Objective: Vitamin D increases muscle strength through protein synthesis and myogenesis and may play an important role in anaerobic and aerobic activities. This study was done to determine the vitamin D status and its relationship with physical function indexes in young Taekwondo athletes.
Methods: This descriptive-analytical study was conducted on 75 young male Taekwondo athletes, aged 18-23 years that were selected using randomized sampling method. Serum 25-hydroxyvitamin D level was measured by ELISA method. The 20-meter shuttle run, running based anaerobic sprint (RAST), vertical jump, 36-meter sprint and Illinois agility tests were used to determine aerobic and anaerobic capacities, explosive anaerobic power of the lower limbs, speed and agility, respectively. Body mass index and percent body fat was measured for each subject. Level below 20, 20-30 and more than 30 ng/ml of serum 25-hydroxyvitamin D were considered as vitamin D deficiency, insufficiency and normal status, respectively.
Results: The results showed that 48% (36 athletes) and 42.66% (32 athletes) of taekwondo athletes had deficient and insufficiency levels of vitamin D, respectively. Also, a significant correlation was detected between serum 25-hydroxyvitamin D concentration and aerobic power (r=0.897), anaerobic power (r=0.901), vertical jump performance (r=0.855), fatigue index (r=-0.838), agility (r=-0.634) and 36 meters sprint (r=-0.793) times (P<0.05). However, this association was significant in athletes with lower than normal levels of vitamin D (P<0.05), no association was found in subjects with normal vitamin D levels.
Conclusion: Vitamin D of 90.66% of young taekwondo practitioners was lower than normal level. Increasing in vitamin D level can improve the physical performance of young athletes with vitamin D deficiency or insufficiency status.