The purpose of this study is to investigate whether exercising brain performed by boxers have any kind of effect on visual attention, eye-hand coordination and dynamic balance performances of athletes.

The aim of this study is to investigate the heart rate and oxygen saturation values of U13 footballers at competition occasion who stand in different cities. 34 footballers participated to the study totally who are playing U13 teams of Ankara Keçiören Bağlum Sport Club and Isparta Iyaş Youth and Sport Club. Height, weight, heart rate and oxygen saturation measurements were taken from research groups. In analyzing handled datas, Independent t Test was used at SPSS 18.0 for Windows. Research Groups’ height means found in Isparta Iyaş Youth and Sport Club 156.1±6,1 cm, found in Ankara Bağlum Sport Club 152,7±5,6 cm; weight means found in Isparta Iyaş Youth and Sport Club 47,0±3,7 kg, Ankara Bağlum Sport Club 48,4±4,0 kg. As comparing the heart rate values pre and during competition, differences found insignificiant too (p>0.05). While comparing the oxygen saturation measurements in pre and 30th minute, differences were found statistically significiant (p<0.05); No significant difference was found in the comparison of the oxygen saturation measurements before the competition and at the 10th, 20th and 40th minutes (p>0.05). Based on the obtained data, we think that studying with more higher areas and groups will be useful for sharpening some differences and similarities. Extended English abstract is in the end of PDF (TURKISH) file.ÖzetBu araştırmanın amacı, farklı yükseltideki illerde  bulunan U13 kategorisi futbolcuların müsabaka şartlarında nabız ve oksijen saturasyon değerlerinin incelenmesidir.Araştırmaya Ankara Keçiören Bağlum Spor (n 17) ve Isparta Iyaş Gençlik Sporun (n:17) U13 futbol takımında oynayan toplam 34 futbolcu gönüllü (izinli) olarak katıldı. Araştırma grubundan boy, vücut ağırlığı, kalp atım sayısı ve O2 saturasyonu ölçümleri alındı. Elde edilen verilerin tanımlayıcı istatistikleri ile gruplar arasında farkları belirlemek için Independent t testi kullanıldı. Araştırmaya katılan sporcuların boy ortalaması Isparta Iyaş Gençlik ve Spor Kulübünde 156,1±6,1 cm, Ankara Bağlum Spor Kulübünde 152,7±5,6 cm iken; vücut ağırlıkları ortalaması Isparta Iyaş Gençlik ve Spor Kulübünde 47,0±3,7 kg, Ankara Bağlum Spor Kulübünde 48,4±4,0 kg olarak tespit edildi. Sporcuların müsabaka başlangıcında ve esnasında kalp atım sayılarının karşılaştırılmasında da fark anlamsız bulunmuştur (p>0.05). Sporcuların müsabaka öncesi ve müsabakanın 30. dakikasında oksijen saturasyonu ölçümlerinin karşılaştırılması sonucunda istatistiksel açıdan anlamlı fark bulunurken (p<0.05), müsabakının öncesi ve 10., 20., 40. dakiklardaki oksijen saturasyonu ölçümlerinin karşılaştırılması sonucunda ise fark istatistiksel açıdan anlamlı fark bulunamamıştır (p>0.05). Elde edilen verilere dayanarak bazı farklılıkların veya benzerliklerin daha da netleşebilmesi için daha fazla yükseltiye sahip olan bölgeler ve gruplar üzerinde çalışılmasının yararlı olacağı düşünmekteyiz.

The purpose of the present study was to examine the relation between the physical characteristics of male tennis players who were aged 10&ndash;12 and their service strike speeds. A total of 13 licensed male tennis players (mean age 10.1&plusmn;0.1 years, mean height 1.46&plusmn;.06 m, mean body weight 38.7&plusmn;1.8 kg, mean sporting age 4.7&plusmn;0.3 years) who played at Middle East Technical University Tennis Club participated in the study. The demographic, anthropometric, (width, length, circumference, and subcutaneous fat) and ball speed measurements of the tennis players were taken and recorded. The data were analyzed by using the &ldquo;Descriptive Statistics&rdquo; and &ldquo;Pearson Correlation&rdquo; in the Statistical Package Program. When length measurements were examined, it was determined that although there was a positive relation between ball speeds and hand length (p&lt;0.05); a negative relation was detected between the other measurements (p&gt;0.05). When the width measurements were evaluated, it was determined that although there was a positive relation between ball speeds and chest, elbow and wrist widths (p&lt;0.05); a negative relation was detected between the other measurements (p&gt;0.05). In terms of the circumferences, although a positive relation was detected between ball speeds and arm contraction, chest, chest inspiration, and chest expiration circumference (p&lt;0.05); a negative relation was detected between the other circumference measurements (p&gt;0.05). When subcutaneous fat measurements were examined, it was determined that there was a negative relation between ball speeds (p&gt;0.05). As a result, when previous studies and literature were examined, it was determined that many studies emphasized that the factors that affect the service speed of young tennis players have a positive relationship with age. It is obvious that the strength features, and depending on this, anthropometric properties improve with age. It is considered that special force and technical training drills, regardless of the age category, may affect the speed and accuracy of the service strike in tennis. Our study offers a different perspective to coaches on this subject.

The purpose of the present study was to compare the strength values of professional footballers according to their positions before the football season. The study group consisted of 27 professional footballers of Şanlıurfaspor Football Club in the 2nd League of Turkey. The mean height of the Study Group was 180.92±6.18 (cm), mean body weight was 80.18±1.5 (kg), and the mean age was 26.40±4.4 (years). The inclusion criteria for the study was being volunteers, and the necessary permissions were obtained from the players, club managers and coaches. The Precor-brand device was used to measure the differences of strengths according to the positions of the footballers. “1 RM” measurements were made from shoulder press, latt pully, leg curl, leg extension, and leg press machines in the footballers. The SPSS 24.00 Program was used in the statistical analysis of the study data. The descriptive statistics were given as mean, standard deviation, and minimum and maximum values. The normality test of the data was analyzed with the Shapiro-Wilk Test. One-Way Anova Test was used to identify the differences between the players and the positions. The significance level was determined as 0.05. According to the results obtained in the study, no significant differences were detected in strength values between goalkeeper, defender, midfielder, and striker positions (p > 0.05). As a result, among the biomotoric properties, strength is important, and quite necessary for a footballer to perform at a high level. These values obtained from 2nd League football players are important for being taken as reference values, and it can be argued that these values obtained in the pre-season prepared the basis for the lack of qualitative differences. In future studies, data that will be obtained from different league levels and training stages will lead to research being considered differently.

The purpose of the study is to investigate if there is a difference between the performance results of the gymnasts receiving and not receiving modern dance education, which is applied to the rhythmic gymnasts in the category of junior.  The experimental group included 10 rhythmic gymnasts competing in the category of junior in Antalyaspor Club with a mean age of 8.50 ±1, a mean height of 1.16±0.4, and a mean weight of 22.7±3.3. The Control Group consisted of 10 rhythmic gymnasts competing in the category of junior in Antalyaspor Club with a mean age of 8.10±1.2, mean height of 1.19±0.3, and with a mean weight of 21.8±2.4. Before the study, the gymnasts and their parents were informed about the aim, title and content of the study, and they were also asked for permission. The participants in this study consisted of 20 licensed rhythmic gymnasts competing in the category of junior in Antalyaspor Club. The gymnasts were divided into two groups: Experimental Group and Control Group. All of the modern dance education applied to 10 gymnasts in the Experimental Group was given in Rhythmic Gym Gymnastics School in Antalya city center. The modern dance education was regularly given by a professional choreograph an hour twice a week, in a total of 10 weeks, 20 days and 20 hours. The arithmetic average and the descriptive statistics of all the data found as a result of the measurements were calculated, and the statistical analysis of the data was made using Independent T-Test in SPSS, and a p-value < 0.05 was considered to be significant. According to the findings, it has been found that modern dance education has a positive effect on the contest results. To sum up, it has been concluded that there is a statistically positive and significant correlation between the success of rhythmic gymnasts receiving and not receiving modern dance education. It has been proved that the performance success of the rhythmic gymnasts receiving modern dance education has been increasing. Thus, including modern dance education in rhythmic gymnastics training is thought to affect the gymnasts’ success positively.