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Hormone and Tendon stiffness measurement in female runner athletes between 18-55 yrs.

Our study goal is to recruit two groups of runners who are active, healthy females between the ages of 18-35 and 35-55 years old. We are including individuals who are both naturally menstruating (pre-menopausal) and those that have at least 9 cycles a year but may have changes in menstrual flow and in the length of the cycle (peri-menopausal).
We are studying the tendon stiffness differences in hormone levels by age groups; and (2) whether there is an association between achilles tendon stiffness-ability to gerenerate force and hormone levels (estrogen and progesterone) regardless of age during a running treadmill protocol.

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Conditions de participation

  • Sexe:

    Female

  • Âges admissibles:

    18 to 55

Critères de participation

Inclusion Criteria:
-You must be aged 18-55.
-Naturally menstruating, minimum of 9 periods per year
-No hormonal contraception use for at least 6 months prior to recruitment.
-Not currently pregnant or  breastfeeding
-Exercise status requires minimum of 3 days per week and 20 km running e.g., track and field middle distance and above event, cross-country running, biathlon, triathlon.

Exclusion Criteria:
-No Injuries with in the last six months.
-Not taking any hormones such as oral contraceptives, or on the patch ithin the past 6 months
-No IUDs, reproductive, autoimmune, inflammatory, adrenal, or endocrine diagnosis
-Less than 9 periods per year
-Post menopause (>12 months of absence of menstruation)
-Not currently pregnant or breastfeeding

Lieu de l'étude

University of Calgary
University of Calgary
Calgary, Alberta
Canada

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Étude parrainée par
University of Calgary
Participants recherchés
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ID de l'étude: REB24-1312