2020, Volume 12, Issue 3
Effect of dynamic and static strength training on hormonal activity in elite boxers
Eser Ağgön1, Özturk Agırbaş2, Hamit Hakan Alp3, Izzet Uçan2, Recep Gürsoy4, Anthony C. Hackney5
1School of Physical Education and Sports, Erzincan Binali Yildirim University
2Department of Physical Education and Sport, Bayburt University
3Department of Biochemistry, Faculty of Medicine, Yuzuncu Yil University
4Department of Physical Education, Mugla Sitki Kocman University
5Department of Exercise & Sport Science; and, Department of Nutrition, University of North Carolina
Author for correspondence: Eser Ağgön; School of Physical Education and Sports, Erzincan Binali Yildirim University; email: eaggon@erzincan.edu.tr
Full text
Abstract
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.
Abbreviations: ACTH ̶ Adrenocorticotropic Hormone, GH ̶ Growth Hormone, C ̶ Cortisol.
Key words: dynamic strength, static strength, exercise, hormones