The effect of different training programs on throwing accuracy of elite female handball players

The aim of this study is to examine the acute effect of different training programs applied to elite female handball players on throwing accuracy. 14 elite female players were participated in the study. The mean age of the participating players was 28.64 ± 9.88 (years), the mean height length was 176.50 ± 4.86 (cm), the mean body weight was 68.07 ± 2.12 (kg) and the mean sport age was 14.36 ± 4.89 (years). On different days, a technical training program, maximal strength training program, strength endurance training program and speed power training program have been implemented to the participating players in the research.  Before and after training, the players throwing the ball from their area to the specific points of goal and the percentage of accuracy was determined. As a result; there was a significant difference between before and after maximal strength training  the mean values of throwing accuracy (p<0,05) but there was no significant difference before and after other training programs (p> 0,05). This result indicates that acute maximal strength training has a negative effect on throwing accuracy

The relation between some motoric and physiological characteristics of 13-15-year-old female volleyball players regarding their positions on the field (roles)

The aim of this study was to determine the relation between some motoric and physiological characteristics of 13-15-year-old female volleyball players regarding their positions on the field. A total of 120 volleyball players have participated voluntarily. 30 of the participants whose mean age value was 14±0,76 were setters; 30 of them were liberoes with mean age value of 13,8±0,45; 30 of them were middle blockers with the mean age value of 14±0,79; 30 of them were hitters with mean age value of 13.52±0,68. The age, height, body weight, right-left hand gripping strength, vertical jump, throwing medicine ball, standing long jump, 30-second speed and body fat percentage measurements of the volleyball players have been performed. In evaluating the data, the One Way ANOVA has been used. No statistically significant differences have been determined between the age, weight right hand gripping strength and body fat percentage measurement results concerning the positions of the volleyball players, who participated in the study (p>0.05). On the other hand, it has been identified that there is a difference between the height, left hand gripping strength, throwing medicine ball, standing long jump, and speed values in terms of their positions (p<0.05). The results of the study could be beneficial to evaluate the motoric and physiological characteristics of the volleyball players regarding their positions in establishing teams and in preparing training programs

The correlation between right hand finger ratio (2D:4D) and the parameters of anthropometric and physical fitness in children

It is hypothesized that there is a correlation between the ratio of second hand finger to fourth hand finger (2D:4D) which is an indicator of prenatal testosterone and physical fitness and sportive performance The aim of this study was to determined correlation between the right hand finger ratio (2D:4D) and the parameters of anthropometric and physical fitness in male and female children aged between 10 and 12. Six hundred and seventy eight males whose age average was 0.49±1.32 and 592 females whose age average was 10.38 ± 1.48 participated in this study. In addition to taking the students’ right hand 2D:4D, height, weight, triceps, subscapular, full arm and leg measurements, vertical jumping, standing long jump, flexibility, 20 m sprint, 10x5 agility, leg strength, right/left hand grip strength, 20 m shuttle run and balance tests were also performed. Statistically differences were found between anthropometric measurements apart from height and BMI, 2D:4D and physical fitness parameters in the males and females. A negative correlation between right hand 2D:4D and vertical jumping, standing long jump, 20 m sprint, 10x5 agility and right hand grip strength in the males. As for the females, although a negative correlation was detected between right hand 2D:4D and height, a positive correlation was found between the same variable and body fat ratio (p<0.05). It can be concluded that while a low 2D:4D ratio was correlated with static and explosive strength, speed and agility in the males, it was correlated with height and body fat ratio in the females

David As[eler] to Mr. J. Meredith (15 October 1962)

https://egrove.olemiss.edu/mercorr_anti/1196/thumbnail.jp

The Relationship of Digit Ratio (2D:4D) With Cerebral Lateralization and Grip Strength in Elite Swimmers

The index finger and the 4th finger ratio (2D:4D) is the indicator of the prenatal testosterone. The aim of this study is to investigate the relationship between 2D:4D, hand preference and hand grip strength in swimmers. A total of 80 elite swimmers, participated in the study. Height, body weight, body mass index (BMI), hand 2D:4D finger measurements and hand grip strength tests were performed for athletes. The hand preference was determined by the Oldfield questionnaire and it was evaluated according to the Geschwind score. The data were recorded in the SPSS 20 program and p<0.05 was considered as statistically significant. It was found that in both men and women, a negative correlation was found between right and left hand 2D:4D and both dominant (DHGS) and non-dominant hand grip strength (NDHGS) values. It was found that men had lower 2D:4D ratio than women. For both right and left handed, there was a statistically significant difference between the right and left hand 2D:4D ratios in both men and women (p<0.05) and the dominant hand (DH) 2D:4D ratios were found to be lower than non-dominant hand (NDH) 2D:4D ratios in both men and women (p<0.05)  It can be said that the 2D:4D ratios may be the effect of determining the hand preference, the grip strength and therefore the strength

2D: 4D, Lateralization and Strength in Handball Players

Lateralization, which is also known as hand preference, and 2D:4D finger ratio is a sign of prenatal testosterone and known to be associated with strength. The aim of this study is to investigate the relationship between 2D: 4D, lateralization and hand grip strength in relation to hand and forearm that are thought to be effective in handball in elite handball players. 67 female and 67 male elite players participated in this study. The height, weight, body-mass index and hand preference of these athletes have been identified and 2D: 4D finger measurements and hand grip strength tests were performed. When identifying the preferences regarding lateralization, the hand distribution preference was determined by the Oldfield questionnaire and evaluated using the Geschwind score. After photocopy images of the two hands of the athletes were taken, their finger lengths were measured Hand grip strength was determined by a Jamar hydraulic dynamometer. Strong correlation was found especially between 2D: 4D and dominant hand grip strength in male and female elite handball players. The ratio of left-handedness due to the positions of players during the game among male and female athletes has been found to be higher than that of the general population. With regard to gender, 2D: 4D was found to be lower in males than females but hand grip was found to be higher in males than females. Besides, a significant correlation between height and BMI with 2D:4D, sport age, height, body weight and hand grip strength was found. This study emphasizes the importance of 2D: 4D, handgrip strength and hand preference in handball

A Study on Somatotype Profiles of the Players in Turkish Bocce National Team

The aim of this study is to determine the differences between the somatotype profiles and inter-disciplinary somatotype profiles of the Turkish Bocce National Team players. In this study, the mean age of the Turkish Men’s Bocce National Team (n-32) was determined as 21,75±2,35 (years), mean height was 177,62±1,03 (cm), mean body weight was 70,75±0,70 (kg), mean Body Mass Index (BMI) was 22,31±1,06 kg/m2, mean body fat percentage was 16,05±1%. The mean age of the Turkish Women’s Bocce National Team (n-21) was 21,76±2,12 (years), mean height was 165,33±4,24 (cm), mean body weight 55,14±6,36 (kg), mean BMI was 23,22±1,06 kg/m2 mean body fat percentage was 16,05±1%. The Heath-Carter method was used in determining the somatotype profiles of the players. the The statistical analyses in the study were made by using the SPSS 20.0 package program. Somatotype profile in men was determined endomorphic 3,21±0,33; mesomorph 5,04±1,11; ectomorphic 2,20±0,18 as mesomorphic-endomorphic; in women, endomorphic 3,33±1,42; mesomorph 5,08±0,26; ectomorphic 2,07±0,09 as mesomorphic-endomorphic. In this study, the somatotype profiles of the Turkish Bocce National Team players were determined, and a statistically significant difference was detected between the volo and petanque-raffa disciplines in men and women (p<0,05). It is believed that this difference stems from the physical performance requiring more muscular force in volo discipline than the petanque and raffa disciplines. In this study, the somatotype components are similar in tennis players in volo men group and the archers, judo players and Water polo players of the other groups (Men-women petanque and raffa group, Women volo group)