The alteration of the urinary steroid profile under the stress
Journal Title: Biology of Sport - Year 2010, Vol 27, Issue 1
Abstract
In the second part of twentieth century anabolic-androgenic steroids were introduced into doping practice and received continuously increasing significance. In order to prove the usage of doping substances, the determination of steroid profile in the urine came into practice. Several factors may be responsible for alterations in the normal steroid profile for example age, sex and diet. The aim of this study was to find out, whether the psychological stress may cause modifications in the steroid profile and T/Et ratio. The effect of physical activity was also considered. The steroid profile was determined in the group of 34 students being in non-stress conditions and under stress immediately before an important university exam. The intensity of stress was rated by self-reported questionnaire. The GC/MS method was applied to determine the steroid profile in the urine samples. The results of the experiment have shown that psychological stress may cause significant changes in the steroid profile, especially in females. Physical activity, independently of stress significantly modified the steroid profile. In summary, observed changes in steroid profile suggest, that major fluctuations of T/Et and A/E ratios under the influence of stressogenic factors and physical activity are unlikely.
Authors and Affiliations
A Gronowska, D Kwiatkowska, M Koteras, E Turek-Lepa
Keywords
Related Articles
- EP ID EP58985
- DOI -
- Views 90
- Downloads 0
INTRA- AND INTERRATER RELIABILITY OF MORPHOLOGICALLY EVALUATED LYMPHOCYTE APOPTOSIS IN TRAINED AND UNTRAINED OBSERVERS
Exercise-induced lymphocyte apoptosis has been reported using biochemical analysis and morphological assessment. Morphological evaluation is limited by the subjective nature of the technique. This investigation evaluated...
Effect of different recovery modalities on anaerobic power in off-road cyclists
Despite massage being widely used by athletes, opinions its effects on performance recovery differ. The aim of the study was reveal the effects of passive recovery (PR), sport massage (SM) and active recovery (AR) after...
Kinetic energy transfer during the tennis serve
Several studies have established the pattern used in the over arm hitting and throwing movements, however to date there has not been one which statistically expresses the Kinetic Link Principle of the tennis serve. The m...
ACUTE EXERCISE-INDUCED MUSCLE INJURY
While much research has recently been focussing on the chronic effects of overtraining, the acute damaging effects of individual eccentric exercise bouts on muscle remain of interest and underlie long-term training effec...
Effects of resistance training on fast- and slow-twitch muscles in rats
The purpose of this study was to investigate the effect of resistance training (RT) on muscle strength, the dependence of that on the fast-twitch (FT) and slow-twitch (ST) fibers hypertrophy, nuclear domain size, synthes...