Performance
Conditions
Keywords
menstrual cycle, Estrogen, performance, variation
Brief summary
This project aims to investigate if muscle strength and muscle power fluctuate during the menstrual cycle. The hypothesis is that the greatest performance will be measured right before ovulation, and at it's lowest on day 1 and 2 of the menstrual cycle in women not using any form for hormonal protection. And that the performance in women using birth control pills, not will variated in the period where they are taking pills (day 1-21).
Interventions
OTHERestrogen level
Women are tested at different times in their menstrual cycle, if there is a cohesion between performance and level of estrogen
Sponsors
Team Denmark
University of Aarhus
Study design
Observational model
COHORT
Time perspective
CROSS_SECTIONAL
Eligibility
Sex/Gender
FEMALE
Age
18 Years to 35 Years
Healthy volunteers
Yes
Inclusion criteria
* Women * 18-35 years of age * BMI 18.5-25.
Exclusion criteria
* Smoking * hormonal or metabolic disorders * chronic sickness * use of medication * breast feeding, vegetarians * diet containing a lot of soja based products * injuries which make it impossible to do the tests
Design outcomes
Primary
| Measure | Time frame | Description |
|---|---|---|
| Change in jumping height | 8 times per month, 2 to 5 days between measurements | measuring of change in muscle power |
| Change in grip strength | 8 times per month, 2 to 5 days between measurements | measuring of changes in muscle strength |
Secondary
| Measure | Time frame | Description |
|---|---|---|
| Change in hormone levels | 8 time per month, 2 to 5 days between measurements | measuring of changes in hormone levels during cycle |
| Change in motivation by questionnaire | 8 times per month, 2 to 5 days between measurements | measuring of changes in motivation for performing |
Countries
Denmark
Outcome results
None listed