Skip to content

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.

null

Participation Requirements

  • Sex:

    Female

  • Eligible Ages:

    18 to 55

Participation Criteria

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

Study Location

University of Calgary
University of Calgary
Calgary, Alberta
Canada

Contact Study Team

Study Sponsored By
University of Calgary
Participants Required
More Information
Study ID: REB24-1312