فهرست مطالب nazanin abuzari

today, the record is one of the major concerns of coaches in competitive swimming. Therefore, finding the proportional type of resistance training as an essential factor affecting physical fitness and performance, is highly important. The purpose of this study was to investigate the effect of four weeks total body resistance training on muscular function and performance of young female swimmers.

Twelve college-level female swimmers were divided into Control and TRX group. The control group performed swimming protocol while the experimental group carried out eight swim like TRX addition to swimming program. Muscular function was measured using isokinetic device and swimming performances was measured by the record they reached and the number of hands and feet strokes during 25 and 50 m breaststroke swimming. Independent T-test was used to analyze the research data after subtracting the pretest from the post-test.

Both groups have shown significance improvement in 25 m swimming record but there wasn’t significant difference between groups (P = 0.289). Moreover, Number of strokes decreased significantly in TRX group (P = 0.31). Muscular function factors in 25 m and total work in 50 m has shown improvement in TRX group (P ≤ 0.05).

In general, combination of TRX with swimming training is most effective than swimming alone to improve swimmers performances.

In general, the results of this study indicate that the combination of TRX with swimming training is more suitable for improving swimmers' performance. It is also recommended that swimmers take advantage of this training method due to the principle of Specificity training and easy use.

Prevalence of obesity and its related disease is considered as a major health complication worldwide. Changing the phenotype of white adipose tissue to brown following exercise is currently being studied as one of the strategies to prevent obesity. The aim of this study was to investigate the effect of eight weeks of continuous and high intensity interval training (HIIT) on UCP1 of visceral and subcutaneous white adipose tissue in obese rats. Eighteen obese rats after eight weeks of high fat diet randomly divided into control, continuous training (CT) and HIIT groups. HIIT protocol included high intensity intervals (80-110 % vVO2max) and low intensity intervals (50 % vVO2max) and CT protocol included running with (65-75 % vVO2max) intensity. 48 hours after the last training session, rats were sacrificed, visceral and subcutaneous white adipose tissue were removed and UCP1 level was assessed through western blotting method. The results showed that eight weeks of CT and HIIT increase UCP1 in visceral and subcutaneous WAT (p<0.05), and this increase were higher in HIIT group regardless of visceral or subcutaneous adipose tissue (P<0.005). It seems that HIIT induce higher increase in UCP1 protein in visceral and subcutaneous white adipose tissue, so obese individuals can use this type of training to benefit obesity prevention affects and improvement of adipose tissue function.