The effect of menstrual cycle phase on exercise capacity measured by treadmill exercise test

Year 2015, Volume: 17 Issue: 1, 12 - 15, 29.04.2015

Sadan Yazar Mehmet Yazıcı

Abstract

The aim of this study was to explore the impact of the menstrual phases on exercise capacity parameters measured by a treadmill exercise test in sedentary premenaupausal women. Exercise capacity expressed in terms of metabolic equivalents (MET) and exercise duration was measured by performing treadmill exercise tests in 30 women (mean age: 29 ± 5.8 years) with regular menstrual cycles at two points during their menstrual cycles: the late-follicular (LF) phase and the mid-luteal (ML) phase. The exercise duration was significantly higher (P < 0.05), and the exercise capacity (in MET) tended to be higher (P = 0.075) in the ML phase than in the LF phase. These results suggested that the menstrual phases in sedentary women can have an influence on exercise capacity. These changes may be attributed to the relative changes in the female steroid hormones between the LF and the ML phases.

Keywords

Estrogen; maximal oxygen uptake; menstrual cycle; metabolic equivalent; treadmill

References

• Bailey SP, Zacher CM, Mittleman KD. Effectof menstrual cycle phase on carbohydrate supplementation during prolonged exercise to fatique. J Apple Physiol. 2007;88:690- 697.
• Beidleman BA, Rock PB, Muza SR,Fulco CS, Forte VA Jr, Cymerman A. Exercise VE and physical performance at altitude are not affected by menstrual cycle phase. J Apple Physiol. 1999;86:1519-26
• Bemben DA, Salm PC, Salm AJ. Ventilatory and blood lactate responses to maximal treadmill exercise during the menstrual cycle. J Sports Med Phys Fitness.1995;35:257-262
• Blair SN, Kohl HW III, Paffenbarger RS, Clark DG, Cooper