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Effects of menstrual cycle, oral contraception, and training on exercise-induced changes in circulating DHEA-sulphate and testosterone in young women
- Source :
- European Journal of Applied Physiology. 106:365-373
- Publication Year :
- 2009
- Publisher :
- Springer Science and Business Media LLC, 2009.
-
Abstract
- The objective of this study was to ascertain the effects of menstrual cycle, oral contraception, and training status on the exercise-induced changes in circulating DHEA-sulphate and testosterone in young women. Twenty-eight healthy women were assigned to an untrained group (n = 16) or a trained group (n = 12) depending on their training background. The untrained group was composed of nine oral contraceptive users (OC+) and seven eumenorrheic women (OC-). The trained group was composed of OC+ subjects only. All the OC+ subjects were taking the same low-dose oral contraception. Three laboratory sessions were organised in a randomised order: a prolonged exercise test until exhaustion, a short-term exhaustive exercise test, and a control session. Blood specimens were collected before, during and after the exercise tests and at the same time of the day during the control session. Basal circulating testosterone was significantly lower in trained as compared to untrained subjects. In all subjects, the prolonged exhaustive exercise induced a significant increase in circulating DHEA-s and testosterone. The short-term exercise induced a significant increase in circulating DHEA-s in untrained eumenorrheic and in trained OC users only. Menstrual phases in OC- did not influence the responses. It was found that exhaustive physical exercise induced an increase in circulating DHEA-s and testosterone in young women. Oral contraception may limit short-term exercise-induced changes.
- Subjects :
- Blood Glucose
medicine.medical_specialty
Sports medicine
Physiology
medicine.drug_class
media_common.quotation_subject
Population
Dehydroepiandrosterone
Physical exercise
Contraceptives, Oral, Hormonal
Physiology (medical)
Internal medicine
medicine
Humans
Testosterone
Orthopedics and Sports Medicine
Exercise physiology
education
Exercise
Menstrual Cycle
Menstrual cycle
media_common
education.field_of_study
Dose-Response Relationship, Drug
Dehydroepiandrosterone Sulfate
business.industry
Age Factors
Public Health, Environmental and Occupational Health
Testosterone (patch)
General Medicine
Androgen
Dietary Fats
Bicycling
Menstruation
Contraception
Endocrinology
Exercise Test
Female
business
Contraceptives, Oral
Subjects
Details
- ISSN :
- 14396327 and 14396319
- Volume :
- 106
- Database :
- OpenAIRE
- Journal :
- European Journal of Applied Physiology
- Accession number :
- edsair.doi.dedup.....f62fb43dfdac73c8ec760d7181861049