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Effects of Hormonal Contraception and the Menstrual Cycle on Fatigability and Recovery From an Anaerobic Exercise Test.
- Source :
- Journal of Strength & Conditioning Research; Jul2024, Vol. 38 Issue 7, p1256-1265, 10p
- Publication Year :
- 2024
-
Abstract
- This study sought to evaluate the effects of oral contraceptive (OC) and hormonal intrauterine device (H-IUD) use, compared with a eumenorrheic (EUM) cycle, on fatigability and recovery between hormone the phases. Peak power (PP), average power (AP), fatigue index (FI), blood lactate, vessel diameter, and blood flow (BF) were measured from a repeated sprint cycle test (10 × 6 seconds) in 60, healthy, active women (mean ± SD; age: 26.5 ± 7.0 years, BMI: 22.5 ± 3.7 kg-m<superscript>-2</superscript>) who used monophasic OC (≥6 months; n = 21), had a H-IUD (≥6 months; n = 20), or had regular naturally occurring menstrual cycle (≥3 months) or had a nonhormonal IUD (EUM; n = 19). Subjects were randomly assigned to begin in either the low-hormone phase (LHP) or high-hormone phase (HHP) and were tested once in each phase. Separate univariate analyses of covariances assessed the change from HHP to LHP between the groups, covaried for progesterone, with significance set at p≤ 0.05. All groups demonstrated similar changes in PP, AP, FI, blood lactate, vessel diameter, and BF between the phases (p > 0.05). Although not significant, AP was higher in LHP for OC (A-248.2 ± 1,301.4 W) and EUM (A-19.5 ± 977.7 W) and higher in HHP for H-IUD (A 369.3 ± 1,123.0 W). Oral contraceptive group exhibited a higher FI (A 2.0%) and reduced blood lactate clearance (A 2.5%) in HHP. In recreationally active women, hormonal contraception and hormone phases may minimally impact fatigue and recovery. Individual elite female athletes may benefit from understanding hormonal contraception type as performance and recovery may slightly vary across the cycle. [ABSTRACT FROM AUTHOR]
- Subjects :
- CROSS-sectional method
PROGESTERONE
WOMEN
BODY mass index
RESEARCH funding
FATIGUE (Physiology)
STATISTICAL sampling
DESCRIPTIVE statistics
RANDOMIZED controlled trials
LONGITUDINAL method
MENSTRUAL cycle
ANAEROBIC exercises
ORAL contraceptives
CONVALESCENCE
BLOOD circulation
STATISTICS
CONTRACEPTION
INTRAUTERINE contraceptives
ATHLETIC ability
COMPARATIVE studies
Subjects
Details
- Language :
- English
- ISSN :
- 10648011
- Volume :
- 38
- Issue :
- 7
- Database :
- Complementary Index
- Journal :
- Journal of Strength & Conditioning Research
- Publication Type :
- Academic Journal
- Accession number :
- 178342781
- Full Text :
- https://doi.org/10.1519/jsc.0000000000004764