BIOLOGICAL RESPONSES TO LABORATORY EXERCISETESTS IN FEMALE CROSS COUNTRY SKI. A CASE STUDY

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BIOLOGICAL RESPONSES TO LABORATORY EXERCISETESTS IN FEMALE CROSS COUNTRY SKI. A CASE STUDY

Journal Title: Medycyna Sportowa - Year 2010, Vol 26, Issue 6

Abstract

Physical fitness of highly skilled female competitor of cross country ski was examined using two routine incremental exercise tests until exhaustion, undergone on a same day and separated by 3 h intermission. The first test was undergone on a motorized treadmill (running), and the second one on a ski ergometer (double poling test). The purpose of this study was two-fold: 1. to assess physical fitness using two incremental exercise tests undergone on a same day, 2. to determined acute changes in blood indices considered as markers of exercise stress and biological cost. Heart rate (HR) was monitored during the whole exercise tests. Capillary blood was sampled in the morning, ten minutes prior to the each test and at 4th minute of recovery to determine lactate and hormones levels. Examined athlete demonstrated excellent physical capacity. Her blood lactate levels were of 10.2 and 13.4 mmol/L and HR were of 193 and 190 beats/min after the running test and the double poling respectively. Each test brought about meaningful rise of plasma cortisol and growth hormone levels, while changes in SHBG, testosterone and DHEA-S concentrations were much more less. Moreover, the post-exertions increments of cortisol and growth hormone levels were surprisingly vary for each the test. Huge cortisolism and very low responses of growth hormone were recorded during running test, but very low cortisol levels and high growth hormone response appeared during double pooling test. The reason for these differ responses to each test was probably an interaction of two subsequent exhaustive exertions.

Authors and Affiliations

Zbigniew Obmiński, Andrzej Klusiewicz

Keywords

EP ID EP55852
DOI -
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