Hackney A C, McCracken-Compton M A, Ainsworth B
Department of P.E. Exercise and Sport Sciences, University of North Carolina, Chapel Hill 27599.
Int J Sport Nutr. 1994 Sep;4(3):299-308. doi: 10.1123/ijsn.4.3.299.
This study examined substrate metabolism responses of eumenorrheic women to different intensities of submaximal exercise at the midfollicular (MF) and the midluteal (ML) phases of the menstrual cycle. Nine women performed a 30-min treadmill run in which the exercise intensity was made more difficult every 10 min (35%, 60%, and 75%). Carbohydrate (CHO) utilization and oxidation rates for the 35% and 60% intensities during the ML session were significantly lower than during the comparable intensities in the MF. Conversely, lipid utilization and oxidation were significantly greater during the 35% and 60% ML session than in the MF session. At 75%, however, the ML and MF CHO-lipid utilization and oxidation rates were not significantly different from one another. Thus, the phase of the menstrual cycle in eumenorrheic women does influence metabolic substrate usage during low- to moderate-intensity submaximal exercise, probably due to changes in the endogenous levels of the female sex hormones.
本研究考察了月经周期卵泡中期（MF）和黄体中期（ML）的正常月经女性对不同强度次最大运动的底物代谢反应。九名女性进行了30分钟的跑步机跑步，运动强度每10分钟增加一次（35%、60%和75%）。ML阶段35%和60%强度下的碳水化合物（CHO）利用率和氧化率显著低于MF阶段相同强度时。相反，ML阶段35%和60%强度下的脂质利用率和氧化显著高于MF阶段。然而，在75%强度时，ML和MF的CHO-脂质利用率和氧化率彼此无显著差异。因此，正常月经女性的月经周期阶段确实会影响低至中等强度次最大运动期间的代谢底物使用，这可能是由于女性性激素内源性水平的变化所致。
