Urinary steroid profile in ironman triathletes

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Urinary steroid profile in ironman triathletes

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Title: Urinary steroid profile in ironman triathletes
Author: Marcos Serrano, Marta; Olcina Camacho, Guillermo Jorge; Crespo Coco, Carmen; Brooks, Darrell; Timón Andrade, Rafael
Abstract: El objetivo de este estudio era determinar las variaciones en el perfil de esteroides urinarios de los triatletas después de un evento Ironman. Un total de 10 participantes masculinos (edad = 36,0 ± 1,27 años; altura corporal = 179,29 ± 10,77 cm; masa corporal = 74,50 ± 1,04 kg) completaron un Campeonato Ironman. Se recogieron muestras de orina antes, inmediatamente después y 24 horas después de la carrera. La cromatografía de gases-espectrometría de masas (GC/MS) se utilizó para detectar y cuantificar las hormonas catabólicas y anabólicas: Androsterona, Deshidroepiandrosteona (DHEA), Androstenediona y Testosterona (T), Betaestradiol, Estrona, Progesterona, Cortisol (C), Cortisona, Tetrahidrocortisol (THE) y Tetrahidrocortisona (THF). Estos fueron medidos en sus formas glucoconjugadas y libres. Los niveles de Androsterona (3297.80 ± 756.83 vs. 2154.26 ± 1375.38), DHEA (47.80 ± 19.21 vs. 32.62 ± 15.96) y Beta-estradiol (59.36 ± 11.7 vs. 41.67 ± 10.59) disminuyeron después del evento. La disminución significativa de la DHEA (47.80 ± 19.21 vs. 32.11 ± 14.03) se mantuvo a las 24 horas. El cortisol (200,38 ± 56,60 vs. 257,10 ± 74,00) y el EL (238,65 ± 81,55 vs. 289,62 ± 77,13) aumentaron después del ejercicio y permanecieron elevados 24 horas después (200,38 ± 56,60 vs. 252,48 ± 62,09; 238,65 ± 81,55 vs. 284,20 ± 66,66). Las siguientes proporciones anabólicas/catabólicas cayeron después del ejercicio: T/C (0,85 ± 0,54 vs. 0,54 ± 0,29), T/THE (0,66 ± 0,29 vs. 0,40 ± 0,08), T/THE+THF (0,38 ± 0,17 vs. 0,24 ± 0,06), DHEA/THE (0. 22 ± 0,05 vs. 0,12 ± 0,05), DHEA/THF (0,34 ± 0,02 vs. 0,21 ± 0,01) y DHEA/THE+THF (0,12 ± 0,02 vs. 0,08 ± 0,03). El perfil de esteroides mostró que los atletas estaban fatigados después de terminar la competición y un estado catabólico permanecía 24 horas después.The aim of this study was to determine variations in the urinary steroid profile of triathletes following an Ironman event. A total of 10 male participants (age = 36.0 ± 1.27 years; body height = 179.29 ± 10.77 cm; body mass = 74.50 ± 1.04 kg) completed an Ironman Championship. Urine samples were collected before, immediately after, and 24 hours following the race. Gas chromatography-mass spectrometry (GC/MS) was used to detect and quantify catabolic and anabolic hormones: Androsterone, Dehydroepiandrosteone (DHEA), Androstenedione and Testosterone (T), Betaestradiol, Estrone, Progesterone, Cortisol (C), Cortisone, Tetrahydrocortisol (THE) and Tetrahydrocortisone (THF). These were measured in their glucuroconjugated and free forms. Androsterone (3297.80 ± 756.83 vs. 2154.26 ± 1375.38), DHEA (47.80 ± 19.21 vs. 32.62 ± 15.96) and Beta-estradiol (59.36 ± 11.7 vs. 41.67 ± 10.59) levels decreased after the event. The significant decrease of DHEA (47.80 ± 19.21 vs. 32.11 ± 14.03) remained at 24 hours. Cortisol (200.38 ± 56.60 vs. 257.10 ± 74.00) and THE (238.65 ± 81.55 vs. 289.62 ± 77.13) increased after exercise and remained elevated 24 hours later (200.38 ± 56.60 vs. 252.48 ± 62.09; 238.65 ± 81.55 vs. 284.20 ± 66.66). The following anabolic/catabolic ratios fell after exercise: T/C (0.85 ± 0.54 vs. 0.54 ± 0.29), T/THE (0.66 ± 0.29 vs. 0.40 ± 0.08), T/THE+THF (0.38 ± 0.17 vs. 0.24 ± 0.06), DHEA/THE (0.22 ± 0.05 vs. 0.12 ± 0.05), DHEA/THF (0.34 ± 0.02 vs. 0.21 ± 0.01) and DHEA/THE+THF (0.12 ± 0.02 vs. 0.08 ± 0.03). The steroid profile showed that athletes were fatigued after finishing the competition and a catabolic state remained 24 hours later.
URI: http://hdl.handle.net/10662/11451
Date: 2018


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