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| Name | Class |
|---|---|
| Team Denmark | OTHER |
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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).
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| Label | Type | Description | Intervention Names |
|---|---|---|---|
| Women using birth control |
| ||
| Women not using birthcontrol |
|
| Name | Type | Description | Arm Group Labels | Other Names |
|---|---|---|---|---|
| estrogen level | Other | Women are tested at different times in their menstrual cycle, if there is a cohesion between performance and level of estrogen |
|
| Measure | Description | Time Frame |
|---|---|---|
| Change in jumping height | measuring of change in muscle power | 8 times per month, 2 to 5 days between measurements |
| Change in grip strength | measuring of changes in muscle strength | 8 times per month, 2 to 5 days between measurements |
| Measure | Description | Time Frame |
|---|---|---|
| Change in hormone levels | measuring of changes in hormone levels during cycle | 8 time per month, 2 to 5 days between measurements |
| Change in motivation by questionnaire | measuring of changes in motivation for performing |
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Inclusion Criteria:
Exclusion Criteria:
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Healthy women, 10 using 2. generations birth control pills and 30 not using any kind of hormonal protection.
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| Facility | Status | City | State | ZIP | Country | Contacts |
|---|---|---|---|---|---|---|
| Section of Sport Science | Aarhus | 8000 | Denmark |
| PubMed Identifier | Type | Citation | Retractions |
|---|---|---|---|
| 35213728 | Derived | He W, Dam TV, Thogersen R, Hansen M, Bertram HC. Fluctuations in Metabolites and Bone Markers Across the Menstrual Cycle in Eumenorrheic Women and Oral Contraceptive Users. J Clin Endocrinol Metab. 2022 May 17;107(6):1577-1588. doi: 10.1210/clinem/dgac112. |
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Blood
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| 8 times per month, 2 to 5 days between measurements |