女性对高强度、长时间耐力运动的睾酮反应。
Testosterone Responses to Intensive, Prolonged Endurance Exercise in Women.
作者信息
Hackney Anthony C, Willett Hannah N
机构信息
Department of Exercise & Sport Science, University of North Carolina, Chapel Hill, NC 27599, USA.
Department of Nutrition-School of Public Health, University of North Carolina, Chapel Hill, NC 27599, USA.
出版信息
Endocrines. 2020 Dec;1(2):119-124. doi: 10.3390/endocrines1020011. Epub 2020 Nov 5.
OBJECTIVE
To examine the response of testosterone in women to an intensive, prolonged endurance exercise bout that mimicked a competitive event.
METHODS
Ten healthy eumenorrheic women ran to exhaustion at ~100% of their ventilatory threshold in their follicular menstrual cycle phase. Testosterone measures were assessed pre-exercise, immediately, 30 min, 60 min, 90 min, and 24 h post-exercise.
RESULTS
At exhaustion (75.1 ± 7.0 min), total (56%), free (36%), and bioavailable testosterone (50%) were increased from pre-exercise values (< 0.05). At 24 h post-exercise, these measures were decreased from pre-exercise values (-21%, -31%, -18%, respectively; < 0.05). Effect sizes for these changes ranged from medium to large in magnitude.
CONCLUSION
Testosterone was elevated in the early recovery period following exhaustive endurance exercise but was reduced by 24 h afterward. These outcomes are comparable to responses seen in men when sex-based concentration differences are considered.
目的
研究女性睾酮对模拟竞技赛事的高强度、长时间耐力运动的反应。
方法
10名月经周期正常的健康女性在卵泡期以约100%的通气阈值跑步至力竭。在运动前、运动即刻、运动后30分钟、60分钟、90分钟和24小时评估睾酮水平。
结果
力竭时（75.1±7.0分钟），总睾酮（增加56%）、游离睾酮（增加36%）和生物可利用睾酮（增加50%）较运动前水平升高（<0.05）。运动后24小时，这些指标较运动前水平降低（分别降低21%、31%、18%；<0.05）。这些变化的效应大小从中等到较大。
结论
力竭性耐力运动后的早期恢复阶段睾酮水平升高，但随后24小时降低。考虑到基于性别的浓度差异，这些结果与男性的反应相当。
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