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    Effect of dynamic and static strength training on hormonal activity in elite boxers
    (Gdansk Univ Physical Education & Sport, 2020) Aggon, Eser; Agirbas, Ozturk; Alp, Hamit Hakan; Ucan, Izzet; Gursoy, Recep; Hackney, Anthony C.
    Background: The aim of this study was to determine hormonal responses to acute and chronic exposure to static and dynamic strength training programs using resistance bands in boxers. Material and methods: 19 male national boxers participated in the study. Boxers were instructed to perform strength exercises with resistance bands for 3 days a week for 8 weeks involving either dynamic (n=10) or static (n=9) resistance exercises. Blood samples were taken before exercise, immediately after the initial exercise session, and 8 weeks later following the last exercise session. Cortisol, growth hormone, adrenocorticotropic hormone adrenaline and noradrenaline levels were measured. Statistical analyses involved non-parametric analysis with an alpha level of .05. Results: Dynamic strength exercises were effective stimuli to growth hormone, adrenaline and noradrenaline, while static strength exercises provoked cortisol, growth hormone, adrenaline and noradrenaline responses both initially after exercise and after 8 weeks of chronic training. Neither dynamic nor static strength exercises were effective in prompting adrenocorticotropic changes after an exercise session or after 8 weeks of training. Conclusions: We showed that dynamic and static strength exercise protocols using resistance bands both could provoke acute and chronic hormonal responses in boxers similar to more traditional modes of such exercise.
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    HANDEDNESS, ACHIEVEMENT IN SPORT AND BOXING
    (Nova Science Publishers, Inc, 2010) Gursoy, Recep; Ziyagil, Mehmet Akif; Sahin, Suleyman; Dane, Senol
    Handedness is a preference for the use of one of the right- or the left-hands. In the large majority of right-handers, speech is controlled by the left side of the brain. Also, the right hemisphere of the brain is usually specialized for recognizing and remembering faces and understanding relationships in space. We live in a right-handed world and that left-handers have an inherent disadvantage in using tools designed for right-handers. Left-handed persons are believed to have better developed motor, attentional and spatial functions. Some studies have explored a possible correlation between left-handedness and enhanced performance in specific sports such as baseball, cricket, fencing, soccer and tennis. The rate of the left-handed boxers was higher compared to the right-handed ones in the National Road Sport Men Boxing Club in Turkey. These results may be associated with two suggestions: 1. the left-handed subjects have an intrinsic advantage over right-handers due to superior spatio-motor skills, 2. advantage in the left-handed boxer and the left-handed other athletes may result from the nature of the game (boxing) or frequency-dependent strategic advantage.