Variation of the steroid profile in relation to training in women and its importance for anti-doping testing

T and A4 in DBS were not affected by acute training. As DBS sample time differed during the day the minor changes in A4 and the T/A4 ratio may be due to diurnal variation and not training dependent effects. In urine certain urinary steroids were lower in the female athletes compared to controls. These results may be of interest when interpreting results of the ABP.

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Publication Details

Journal
Frontiers in Physiology
Published
2026-03-04
DOI
https://doi.org/10.3389/fphys.2026.1733515
Primary Topic
Hormonal and reproductive studies
Type
article
Field-Weighted Citation Impact
0.00

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article

Variation of the steroid profile in relation to training in women and its importance for anti-doping testing

Emma Eklund, Olivier Salamin, Raul Nicoli, A. Andersson et al.
Frontiers in Physiology
Hormonal and reproductive studies
article

Variation of the steroid profile in relation to training in women and its importance for anti-doping testing

Emma Eklund, Olivier Salamin, Raul Nicoli, A. Andersson, A. L. Hirschberg, L. Ekström
article en

Abstract

T and A4 in DBS were not affected by acute training. As DBS sample time differed during the day the minor changes in A4 and the T/A4 ratio may be due to diurnal variation and not training dependent effects. In urine certain urinary steroids were lower in the female athletes compared to controls. These results may be of interest when interpreting results of the ABP.

Frontiers in PhysiologyVol. 17
Karolinska University Hospital (SE), Karolinska Institutet (SE), FORS – Swiss Centre of Expertise in the Social Sciences (CH), University of Lausanne (CH)
Vetenskapsrådet, Centrum för idrottsforskning
Gender equality
Openalex Percentile: Top 35%
Hormonal and reproductive studies
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