Metin Şahin

Effect of Training and Gender on Plasma Irisin, Leptin, and Insulin Levels

The objective of this study is the comparison of the irisin, leptin, and insulin hormone levels of the female and male elite taekwondo athletes and non-athletes. Elite taekwondo athletes (7 males, 6 females) and university students (8 males, 6 females) between the ages of 16 and 20 who do not do exercise regularly and who are moderately active have taken part in the study. In the beginning of the study, the body compositions of the participants were determined and their plasma irisin, leptin, and insulin hormone analyses were determined by means of the Enzyme-Linked Immuno Sorbent Assay (ELISA) method receiving their blood samples at 8:00 a.m. after a night of staying hungry. It was found that no impact of training and gender on the irisin and insulin hormone levels had appeared jointly or separately (p>0,05) while they affected the leptin levels significantly (p<0.05). The leptin levels in females in both athletes and non-athletes were determined to be higher than males to significant extent and the leptin levels of both female and male athletes were significantly lower than non-athletes. As a result, it can be said that regular exercise and gender do not affect the levels of irisin and insulin hormones but they affect the leptin level significantly.

Türkiye Büyükler Taekwondo Milli Takım Seçmelerine Katılan Bay ve Bayan Sporcuların Öfke Düzeylerinin Karşılaştırılması

The aim of this study is to determine the level of anger of the athletes taking part in Adults National Team eliminations. The sample group consists of 52 females, 115 males, totally 167 elite athletes took part in the eliminations. The average of age for females was 20, 38, and 20, 99 for males. In order to identify the level, Spielberg’s four-dimensional Schedule whose validity and reliability for our country was adapted to by Özer in 1994, developed by Spielberg in 1983 was used. As a result of analysis made, no outstanding difference of anger level was found between males and females in terms of permanent anger factor(p=0,579); similarly no significant difference was discovered in respect to sub factor of anger-out (p=0,315). Also in analysis of anger-in (p=0.673) and anger-out (p=0.290) sub scales, important difference wasn’t pointed out between male and female athletes.Bu calismanin amaci Turkiye buyukler taekwondo milli takim secmelerine katilan sporcularin ofke duzeylerinin incelenmesidir. Arastirmanin orneklem grubu buyukler taekwondo milli takim secmelerine katilan bayan (n=52), erkek (n=115), toplam 167 elit sporcudan olusmaktadir. Bayan sporculari yas ortalamasi 20,38 ve erkek sporcularin yas ortalamasi 20,99 olarak belirlenmistir. Sporcularin ofke duzeylerinin belirlenmesinde Spielberger tarafindan 1983 yilinda gelistirilmis, ulkemiz icin gecerlilik ve guvenirliligi Ozer (1994) tarafindan yapilmis olan dort boyuttan olusan Spielberg surekli ofke ve ofke tarz olcegi (SSOOTO) kullanilmistir. Sonuc olarak, bayan ve erkek sporcularin ofke duzeylerinin incelenmesinde; surekli ofke degiskeni bakimindan bayanla erkek arasinda anlamli farklilik cikmamistir (p=.579); benzer sekilde ofke disi alt degiskeni bakimindan da farklilik cikmamistir (p=0.315). Ofke ici alt (p=0.673) ve ofke kontrol alt (p=0.290) olceklerinin incelenmesinde de bayan ve erkek sporcular arasinda farklilik cikmamistir

Türkiye Büyükler Taekwondo Milli Takım Seçmelerine Katılan Sporcuların Stresle Başa Çıkma Düzeylerinin Cinsiyet Faktörüne Göre İncelenmesi

Bu calismanin amaci Turkiye buyukler taekwondo milli takim secmelerine katilan sporcularin stresle basa cikma duzeylerinin incelenmesidir. Arastirmanin orneklem grubu, buyukler taekwondo milli takim secmelerine katilan bayan (n=56), erkek (n=118), toplam 174 elit sporcudan olusmaktadir. Bayan sporcularin yas ortalamasi 20,48 ve erkek sporcularin yas ortalamasi 21,00 olarak belirlenmistir. Sporcularin ofke duzeyinin belirlenmesinde A. Sibel Turkum (1999) tarafindan gelistirilmis olan 5’li Likert tipi stresle basa cikma olcegi (SBO) kullanilmistir. Sosyal degisken bakimindan bayan ve erkek sporcular arasinda anlamli farklilik cikmamistir. (p=0.987). Stresle Basa cikma degiskeni bakimindan gruplar arasinda anlamli farklilik bulunmustur (p=0.031) buna gore bu degisken bakimindan bayanlarin ortalamasi erkeklere gore anlamli olarak daha yuksek bulunmustur

Analysis on the Level of Assertiveness of the Athletes Took Part in Eliminations for Adults Taekwondo National Team

Atilgan olmayi bircok faktor etkileyebilir. Kadinin geleneksel kiz kardes ve bakici rolu zaman zaman onun kati ve otoriter davranarak saldirgan olmasina, zaman zamanda pasif davranmasina neden olmaktadir. Bu calismanin amaci 2014 yili Turkiye buyukler taekwondo milli takim secmelerine katilan sporcularin atilganlik duzeylerinin incelenmesidir. Bu arastirmaya; yas ortalamasi 20,39 olan 56 bayan sporcu ve yas ortalamasi 21,12 olan 106 erkek sporcu katilmistir. Toplam 162 katilimcinin atilganlik duzeyini belirlenmesinde Rathus (1977)’un gelistirdigi ve Nilufer Voltan Acar (1980)’in Turkceye uyarlama calismasi yaptigi Rathus Atilganlik Envanteri (RAE-Rathus Assertiveness Schedule) kullanilmistir. Sonuc olarak, bayan ve erkek sporcularin atilganlik duzeyi puanlarinin karsilastirilmasinda anlamli bir farklilik bulunmamistir