Status:
RECRUITING
Effects of the Menstrual Cycle on Triceps Surae Properties in Women
Lead Sponsor:
Marco Aurélio Vaz, PhD
Conditions:
Menstrual Cycle
Achilles Tendon
Eligibility:
FEMALE
18-30 years
Brief Summary
The menstrual cycle is an important biological rhythm, whereby large cyclic fluctuations in endogenous sex hormones, such as estrogen and progesterone, are observed, which can affect performance. Evid...
Eligibility Criteria
Inclusion
- Inclusion criteria for the group of eumenorrheic women
- Being eumenorrheic with a regular menstrual cycle lasting between 21 and 35 days during the last 6 months prior to study participation.
- Body Mass Index between 20 and 25 kg/m2.
- Normal ankle function and range of motion.
- Do not use hormonal contraception of any kind or supplements hormones for at least the 6 months prior to the study.
- No complaints of pain or history of lower limb injury.
- In view of the COVID-19 pandemic, have completed vaccination will be used as an inclusion criteria.
- For the physically active group, practice regular physical exercise at least 3 times a week for the past 6 months.
- For the sedentary group, not practicing regular physical exercise in the last 6 months.
- Inclusion criteria for the group users of hormonal oral contraception:
- Body Mass Index between 20 and 25 kg/m2.
- Normal ankle function and range of motion.
- Make use of any method of oral hormonal contraception (compressed).
- Make use of combined oral hormonal contraception with estrogen and progesterone (ethinylestradiol + Drospirenone) for at least 6 months before participating in the study.
- Do not use other hormone supplements for at least 6 months prior to the study.
- No complaints of pain or presence of pathologies in the lower limb
- In view of the COVID-19 pandemic, have completed vaccination will be used as an inclusion criteria.
- For the physically active group, practice regular physical exercise at least 3 times a week for the past 6 months.
- For the sedentary group, not practicing regular physical exercise in the last 6 months
Exclusion
- Exclusion Criteria for eumenorrheic and contraception hormonal groups:
- Health problems - contraindication to maximal effort exercise. Additionally, the following subjects will be excluded:
- Women who have anovulatory cycles or phase lutea deficiency.
- Women in early menopause.
- Pregnant or lactating women.
- Women with oligomenorrhea (menstrual cycles longer than 35 days, or delay of menstruation for the same period).
- Women with hypothalamic amenorrhea.
- Female smokers.
- Women with metabolic syndrome.
- For women using hormonal contraceptives, women who use adhesive, injectable, intrauterine devices, implants, vaginal rings, as well as progesterone-only CH methods.
- Does not meet the inclusion criteria.
Key Trial Info
Start Date :
November 10 2023
Trial Type :
OBSERVATIONAL
Allocation :
ESTIMATED
End Date :
December 31 2024
Estimated Enrollment :
40 Patients enrolled
Trial Details
Trial ID
NCT06214442
Start Date
November 10 2023
End Date
December 31 2024
Last Update
June 10 2024
Active Locations (1)
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1
Marco Aurelio Vaz
Porto Alegre, Brazil