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The effect of menstrual cycle on maximal breath-hold time.
Respiratory Physiology & Neurobiology ( IF 2.3 ) Pub Date : 2020-01-07 , DOI: 10.1016/j.resp.2020.103381
Evgenia D Cherouveim 1 , Petros G Botonis 2 , Thodoris Tsakiris 3 , Maria D Koskolou 3 , Nickos D Geladas 3
Affiliation  

This study investigated the effect of menstrual cycle phase on breath-hold time (BHT). Twelve healthy females, aged 18-30 yrs, with regular menstrual cycles, without breath-hold (BH) experience, performed a BH protocol which included eight repeated maximal efforts with face immersion in cool water separated by 2-min intervals in two different phases of menstrual cycle; early follicular (EF) phase and midluteal (ML) phase. Respiratory, cardiovascular and hematological responses were studied before, during and after BH efforts. Maximal BHT was significantly higher during ML (115.59 ± 13.95 s) compared to EF (106.10 ± 12.42 s) phase of the menstrual cycle. Metabolic rate and build-up of CO2 were higher (p < 0.001) in EF compared to ML phase. In conclusion, the greater BHT observed at the ML phase of the menstrual cycle may be the result of elevated levels of estrogen and progesterone during midluteal phase affecting both ventilatory response and metabolic rate.

中文翻译:

月经周期对最大屏气时间的影响。

这项研究调查了月经周期阶段对屏气时间(BHT)的影响。十二名健康女性,年龄在18-30岁之间,有规律的月经周期,没有屏气(BH)经历,执行了一项BH协议,其中包括八次重复的最大努力,将脸部浸入凉水中,每隔2分钟间隔2分钟月经周期 早期卵泡期(EF)和黄体中期(ML)。在BH努力之前,期间和之后研究了呼吸,心血管和血液学反应。与月经周期的EF(106.10±12.42 s)阶段相比,ML(115.59±13.95 s)期间的最大BHT明显更高。与ML期相比,EF中的代谢率和CO2积累更高(p <0.001)。结论,
更新日期:2020-01-07
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