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The relationship between anthropometric characteristics and hip joint flexibility among teenaged girls in football schools
, , , , , ,
Volume 10, Issue 4 (10-2012)
Abstract

The purpose of present study was to investigate the relationship between
Anthropometric characteristics and hip joint flexibility among teenaged girls in
football schools. The population of this study comprised 120 teenaged girls from
football schools of Mashhad. 40 teenaged girls of the population with mean and
standard deviation of age 13/90±0/84 years, weight 51/62±6/51 kg, and height
156/35±4/22 cm as subjects participated. The Anthropometric variables
including calf length, tight length, calf circumference, hip circumference, knee
diameter, pelvic width, and thickness of subcutaneous fat of iliac crest, iliac,
front tight, middle of the calf, range of motion in flexion and extension were
measured. The collected data were analyzed through descriptive statistics and
Pearson correlation coefficient with significant level of p < 0.05. The results
showed that there is a negative and significant relationship between thickness
of subcutaneous fat in front tight, middle of the calf and the range of motion in
hip flexion. However, there is a positive and significant relationship between
pelvic width and the range of motion in hip extension. The results of the present
study demonstrated that there is a relationship between thickness of
subcutaneous fat and pelvic width and hip joint flexibility


The Effect of Six Weeks Upper Body Plyometric Training on Anaerobic Power and Record of 25 Meter Front Crawl Performance in 10 Years Old Swimmer Boys
Mr Mojtaba Sadeghi, Dr Hamid Rajabi, Dr Farzad Nazem,
Volume 21, Issue 25 (9-2023)
Abstract
The purpose of this study was determine the effect of upper body plyometric training on anaerobic power and record of 25 meters front crawl performance in 10 years old swimmer boys. 16 swimmer boys chosen voluntarily (The mean age was 9.9 ± 0.7 years ، weight 45.9 ±9 kg , Height 149.8 ± 5 cm، BMI  is 19.20 ± 3 Kg / m 2  ) And Subjects divided into two groups of training (n=8) and control(n=8).Before and after the implementation of the protocol investigate test 25 meters front crawl performance  at the distance 10, 20 and 25  metrs  and the number of hand strocke to check the performance of the swimming also anaerobic hand wingiting test function was evaluated. To analyze data, used the covariance test.The results showed six weeks upper body plyometric training Performance Indicators an hands Front crawl Including Peak power increased Significantly (18%) but the average power increase (7%) was not significant (p>0.05). Also, Swimming performance at of 10 meters) 8% (,10 to 20)6%( and 25 meters distance( 3/80%) growth in compare to control group that was significant(p <0.05) As well as in the number of hand strocke, Plyometric training group although had growth in swim 10 meters (11%), 10-20 meters (7.5%) and in 25 meters distance (5.33%) but the isnt significance (p>0.05). results indicate that six week upper body plyometric traning to an increase and improvement in the measured parameters, and can be used as a complementary training method in young swimmers.

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