Author(s): DURZYNSKA, A., BRZEZINSKA, P., KOCHANOWICZ, M., NIESPODZINSKI, B., GARD, R., ANTOSIEWICZ, J., KOCHANOWICZ, A., MIESZKOWSKI, J., Institution: UNIVERSITY OF LOMZA , Country: POLAND, Abstract-ID: 2417

INTRODUCTION:
It is well known that professional physical training may be one of the factors modifying s circulating serum level of growth hormone, testosterone and cortisol. However, the effect of high-intensity upper and lower body Wingate Anaerobic Test on the serum hormone levels in association to vitamin D status is controversial . The aim of the current study was to verify hypotheses: that long lasting gymnastic training induces adaptation changes in hormonal homeostasis during upper and lower body anaerobic exercises, and presented changes are depend on the muscle involvement during different types of activities and are regulated by the vitamin D status.
METHODS:
Sixteen elite male artistic gymnasts ( 21.4 ± 0.8 years-old) and 16 physically active men (the control group, 20.9 ± 1.2 years-old) voluntarily participated in this study. Blood was collected using venipuncture procedures (antecubital vein) in tree timepoints: before, 5 min and 60 min after Wingate anaerobic tests. Hormone measurements consisted of levels of free growth hormone, testosterone and cortisol in blood serum. Measurement was made using chemiluminescence method. Vitamin D active metabolites, 25-hydroxyvitamin D2 [25(OH)D2] and 25-hydroxyvitamin D3 [25(OH)D3], as a proportion of the total serum concentration of 25-hydroxyvitamin D [25(OH)D], were analyzed using the commercially available Total 25OH Vitamin D ELISA kits.
RESULTS:
Significantly higher performance during upper lower body WAnT were observed in professional gymnasts’ groups, for mean power, peak power and mean power normalized to body mass. Furthermore, gymnasts showed higher serum concentration for hGH, and testosterone. An inverse relationship was observed in cortisol, whose concentration changes were greater in the control group. Additionally, significantly negative correlations between the initial concentration of vitamin D3 and baseline cortisol were noted in both populations,
CONCLUSION:
Gymnastic training affect the anaerobic performance hormonal status changing the serum concentration of hGH, cortisol and testosterone induced by anaerobic exercise. Moreover, hormonal status is associated with vitamin D concentration, and shows its significant regulating properties in post exercises response.