Hackney A C, Curley C S, Nicklas B J
Exercise Physiology Laboratory, University of North Carolina, Chapel Hill.
Exercise Biochemistry Laboratory, Iowa State University, Ames, USA.
Scand J Med Sci Sports. 1991 Jun;1(2):94-98. doi: 10.1111/j.1600-0838.1991.tb00277.x.
This study examined the responses of eumenorrheic women to 60 min of submaximal exercise at the mid-follicular (MF), ovulatory (OV) and mid-luteal (ML) phases of the menstrual cycle. Blood metabolite-hormonal measures, cardiorespiratory responses and ratings of perceived exertion (RPE) (local, legs only; and total, entire body) were monitored at 15-min intervals throughout exercise. No significant effects for phase were observed in the blood measures or the cardiorespiratory responses, except for the respiratory exchange ratio (RER). The overall exercise OV RER (0.86 ± 0.02; mean ± SEM) was lower than at MF (0.94 ± 0.02) but not at ML (0.89 ± 0.01). Substrate utilization (%) and oxidation (g/min) calculations indicated that more fat was used during OV than at MF but not ML. Conversely, more carbohydrate was used during MF than OV. Additionally, local RPE was higher in OV than in the MF or ML trials at 30-60 min of exercise. These findings suggest that menstrual cycle hormonal fluctuations influence metabolic substrate usage and effort perception during submaximal exercise in eumenorrheic women.
本研究调查了月经周期处于卵泡中期（MF）、排卵期（OV）和黄体中期（ML）的正常行经女性在进行60分钟次最大强度运动时的反应。在整个运动过程中，每隔15分钟监测一次血液代谢物-激素指标、心肺反应以及主观用力感觉评分（RPE）（局部，仅腿部；以及整体，全身）。除呼吸交换率（RER）外，在血液指标或心肺反应中未观察到月经周期阶段的显著影响。运动时整体的OV期RER（0.86±0.02；平均值±标准误）低于MF期（0.94±0.02），但不低于ML期（0.89±0.01）。底物利用率（%）和氧化量（克/分钟）的计算表明，OV期比MF期消耗更多脂肪，但与ML期无差异。相反，MF期比OV期消耗更多碳水化合物。此外，在运动30 - 60分钟时，OV期的局部RPE高于MF期或ML期试验。这些发现表明，月经周期的激素波动会影响正常行经女性在次最大强度运动期间的代谢底物使用和用力感觉。
