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    Acute effects of static and dynamic stretching exercises on lower extremity isokinetic strength in taekwondo athletes
    (Ios Press, 2018) Alp, Mahmut; Catikkas, Fatih; Kurt, Cem
    BACKGROUND: Traditional warm-up exercises generally consist of submaximal aerobic running. Thereafter static or dynamic stretching exercises appropriate to the field are advised to keep the strength, which is the main component of physical fitness, stabilized. OBJECTIVE: To examine and compare the acute effects of static stretching (SS) and dynamic stretching (DS) on the knee and ankle flexor and extensor concentric (CON) isokinetic strength in well-trained male taekwondo athletes. METHODS: A total of 14 male taekwondo athletes who train at least 4 days a week, 90 min. a day, were tested for knee and ankle flexor and extensor isokinetic peak moment (PM) at 60 and 180 degrees/s before and 4 min. after three different stretching exercise sessions, namely, non-stretching (NS), SS, and DS, with 48-h rest intervals in a randomized crossover study design. RESULTS: None of the exercises: NS, SS and/or DS had any effect on the concentric strength of the knee and ankle flexor and extensor muscles. CONCLUSIONS: These findings suggest that in well-trained taekwondo athletes who are accustomed to static or dynamic movement actions may be less suscePMible to stretching-induced strength deficit. Whether this conclusion may be extended to other sporting events requires further research.
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    Kinanthropometric Attributes of Young Male Combat Sports Athletes
    (Collegium Antropologicum, 2013) Catikkas, Fatih; Kurt, Cem; Atalag, Ozan
    Although there are enough studies concerning the kinanthropometric attributes of players of sports such as football, basketball, or volleyball in Turkey, there are not enough studies on the same for combat sports. Hence, our aim is to assess the kinanthropometric attributes of different combat sports like karate, taekwondo, judo and kickboxing. The present study included 48 national level male athletes from four different combat sports (age, 20.3 (3.19) years; number of years playing the sport, 8.33 (4.59); height, 174.3 (7.15) cm; weight, 67.35 (10.55 kg). Skinfold thickness was measured with a skinfold caliper (Holtain Ltd., UK), and Yuhazs formula was used to calculate the body fat percentage. Somatotype assessment was carried out with a computer program (Sweat Technology Trial Version, South Australia). Width measurements were obtained with a slide caliper (HLT-100, Holtain Ltd.), and girth measurements were obtained with a non-flexible tape measure. The data obtained were analyzed with the computer program SPSS 17.0 in terms of the SD. The findings were as follows: body mass index (BMI), 22.00 (2.66) kg/m(2); body fat percentage, 12.20% (3.07%); endomorphic component, 2.9 (1.30); mesomorphic component, 4.25 (1.30); and ectomorphic component, 3.10 (1.30). The cormic index was 51.99% (1.88%); Monourier index, 92.39% (4.47%); Acromio-iliac index, 60.87% (6.61%); Martine index, 6.29% (0.70%); Biacromial index, 22.58% (0.99%); and hip index, 13.91% (0.86%). The mesomorphic component was found to be dominant in our study. Although BMIs were found to be normal, body fat percentages were low. According to body proportions, the athletes who participated in this study had wide shoulders, narrow hips, and medium-sized trunks.