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年轻的休闲训练女性短期服用脱氢表雄酮与超量运动

Short-term Dehydroepiandrosterone Intake and Supramaximal Exercise in Young Recreationally-trained Women.

作者信息

Gravisse Nicolas, Vibarel-Rebot Nancy, Labsy Zakaria, Do Manh-Cuong, Gagey Olivier, Dubourg Céline, Audran Michel, Collomp Katia

机构信息

Laboratoire CIAMS, Université Orléans, Orléans, France.

Département STAPS, University of Paris-Sud, Orsay, France.

出版信息

Int J Sports Med. 2018 Sep;39(9):712-719. doi: 10.1055/a-0631-3008. Epub 2018 Jun 25.

Abstract

WADA has banned dehydroepiandrosterone (DHEA) but its ergogenic effect in female athletes has never been investigated. The aim of this study was to determine whether short-term DHEA intake would improve performance during a supramaximal field exercise in healthy young recreationally trained women. Its impact on body composition, metabolic responses was also measured. Eleven young female volunteers completed four running-based anaerobic sprint tests: just before and after treatment with either oral placebo or DHEA (100 mg/day/28days), following a double-blind and randomized protocol. Bioelectrical impedance assessed body composition. At rest and after passive recovery, blood samples were collected for lactate measurement and saliva samples for DHEA, testosterone and cortisol analysis. There was no significant difference in body composition or performance parameters after DHEA administration, despite a tendency toward increased peak power and decreased fat mass. However, DHEA treatment induced a very marked increase in saliva DHEA and testosterone concentrations (p<0.001), with no change in cortisol or lactate levels. In conclusion, short-term DHEA administration did not improve performance or have an anabolic effect in young female recreationally trained athletes, despite the increase in androgenic hormones. Further studies are needed to determine whether a higher daily dose would generate an ergogenic effect during anaerobic exercise.

摘要

世界反兴奋剂机构已禁用脱氢表雄酮(DHEA),但其对女运动员的促力效果从未得到研究。本研究的目的是确定短期摄入DHEA是否会改善健康的年轻休闲训练女性在超最大强度野外运动中的表现。同时还测量了其对身体成分、代谢反应的影响。11名年轻女性志愿者按照双盲随机方案,在口服安慰剂或DHEA(100毫克/天/28天)治疗前后,完成了四项基于跑步的无氧冲刺测试。通过生物电阻抗评估身体成分。在休息时和被动恢复后,采集血样测量乳酸,采集唾液样本分析DHEA、睾酮和皮质醇。服用DHEA后,身体成分或表现参数没有显著差异,尽管峰值功率有增加趋势,脂肪量有减少趋势。然而,DHEA治疗导致唾液中DHEA和睾酮浓度显著升高(p<0.001),皮质醇或乳酸水平没有变化。总之,短期服用DHEA并没有改善年轻休闲训练女运动员的表现,也没有产生合成代谢作用,尽管雄激素有所增加。需要进一步研究以确定更高的每日剂量是否会在无氧运动期间产生促力效果。

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