PMID: 11317151Apr 24, 2001Paper

Responses of blood hormones to the maximal rowing ergometer test in college rowers

The Journal of Sports Medicine and Physical Fitness
J Jürimäe, T Jürimäe

Abstract

The purposes of this study were to investigate the resting levels and the acute hormonal response of total testosterone (Ttot), free testosterone (Tfree), cortisol (C) and Tfree:C ratio to the 6-minute all-out rowing ergometer test. METHODS. Cross-sectional study to investigate the responses of blood hormones to the maximal rowing ergometer test in college rowers. Eight college level male rowers (22.0 +/- 2.8 yrs, 191.8 +/- 4.1 cm, 85.4 +/- 4.3 kg, BMI: 23.2 +/- 1.3 kg x m(-2)) took part in this investigation. a graded exercise test at the intensities of 150, 200 and 250 W (6-minute each) and a 6-minute all-out test on a rowing ergometer (Concept II, Morrisville, USA) were performed at separate measurement sessions. Heart rate (HR) was recorded at the end of each load during a graded exercise test. Individual physical working capacity of rowers was calculated at the maximum HR recorded during a 6-minute all-out test. Venous blood samples were obtained 3 minutes before and immediately after the 6-minute all-out test to determine the concentration of Ttot, Tfree, Tfree:C ratio, glucose and lactate (LA) in blood. Mean power was 354.3 +/- 26.8 W and HR 190.9 +/- 5.1 beats x min(-1) during the all-out test. Mean blood LA concentrati...Continue Reading

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