The effect of the menstrual cycle and water consumption on physiological responses during prolonged exercise at moderate intensity in hot conditions

Hideki Hashimoto, Toshimichi Ishijima, Katsuhiko Suzuki, Mitsuru Higuchi

Research output: Contribution to journalArticle

4 Citations (Scopus)

Abstract

BACKGROUND: Reproductive hormones are likely to be involved in thermoregulation through body fluid dynamics. In the present study, we aimed to investigate the effect of the menstrual cycle and water consumption on physiological responses to prolonged exercise at moderate intensity in hot conditions. METHODS: Eight healthy young women with regular menstrual cycles performed cycling exercise for 90 minutes at 50% VO2peak intensity during the low progesterone (LP) level phase and high progesterone (HP) level phase, with or without water consumption, under hot conditions (30°C, 50% relative humidity). For the water consumption trials, subjects ingested water equivalent to the loss in body weight that occurred in the earlier non-consumption trial. For all four trials, rectal temperature, cardiorespiratory responses, and ratings of perceived exertion (RPE) were measured. RESULTS: Throughout the 90-minute exercise period, rectal temperatures during HP were higher than during LP by an average of 0.4°C in the non-consumption trial (P

Original languageEnglish
Pages (from-to)951-960
Number of pages10
JournalJournal of Sports Medicine and Physical Fitness
Volume56
Issue number9
Publication statusPublished - 2016 Sep 1

Fingerprint

Menstrual Cycle
Drinking
Progesterone
Exercise
Temperature
Body Temperature Regulation
Body Fluids
Hydrodynamics
Humidity
Body Weight
Hormones
Water

Keywords

  • Drinking
  • Estradiol
  • Hot temperature
  • Progesterone

ASJC Scopus subject areas

  • Orthopedics and Sports Medicine
  • Physical Therapy, Sports Therapy and Rehabilitation

Cite this

The effect of the menstrual cycle and water consumption on physiological responses during prolonged exercise at moderate intensity in hot conditions. / Hashimoto, Hideki; Ishijima, Toshimichi; Suzuki, Katsuhiko; Higuchi, Mitsuru.

In: Journal of Sports Medicine and Physical Fitness, Vol. 56, No. 9, 01.09.2016, p. 951-960.

Research output: Contribution to journalArticle

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