Recovery Clinical Trial
— OC-ROfficial title:
Influence of Oral Contraceptive Use on Recovery in Trained Women
Verified date | May 2024 |
Source | University of Aarhus |
Contact | n/a |
Is FDA regulated | No |
Health authority | |
Study type | Interventional |
There is still no one who has studied how oral contraceptive use affects recovery in trained women after repeated high-intensity workouts. Consequently, a well-controlled study is needed. The project is designed as a controlled cohort study, where 20 oral contraceptive users will be compared with 20 non-users. After initial preliminary examination and habituation to the test procedures, the subjects will start the intervention in week 2 of their menstrual cycle / active contraceptive pill cycle. Before and 3h, 24h and 48h after 3 intense strength training sessions performed 2 days in a row, blood samples will be taken, muscle soreness measured and performance tests performed. The day before the first training session and over the 4 trial days, the subjects will receive a standardized diet.
Status | Completed |
Enrollment | 40 |
Est. completion date | September 27, 2023 |
Est. primary completion date | September 27, 2022 |
Accepts healthy volunteers | Accepts Healthy Volunteers |
Gender | Female |
Age group | 18 Years to 30 Years |
Eligibility | Inclusion Criteria: - BMI 18.5-30 - Regular training minimum. 4 times a week (1= times strength training, 1= times endurance training / interval training or interval-based sports. If the interest in participation is greater than necessary, we will prioritize people who perform strength training at least twice a week) Exclusion Criteria: - Irregular menstruation over the last 6 months (shorter than 24 days or longer than 35 days cycle) - Used birth control pills for less than 6 months - Non-birth control pill users must not have used birth control pills, IUDs, birth control pills, or mini- pills for a maximum of 1 month during the last 6 months and not within the last 3 months up to the trial. . - Injuries / pain in the lower body, which prevents participation in intense strength training - Medication consumption that may affect protein metabolism and inflammatory parameters. - Diabetes - Smoking - Unstable weight / major weight loss (weight fluctuations of more than 5 kg in the last six months) - Eating disorder - Pregnancy - Cannot read or understand Danish |
Country | Name | City | State |
---|---|---|---|
Denmark | Aarhus University, Department for Public Health, Section for Sport Science | Aarhus |
Lead Sponsor | Collaborator |
---|---|
University of Aarhus |
Denmark,
Type | Measure | Description | Time frame | Safety issue |
---|---|---|---|---|
Primary | Changes in maximal knee extensor strength and Rate of force development | Measured in a Humac Norm dynamometer | Before, 3 hours , 24 hours and 48 hours after training | |
Secondary | Changes in Jumping performance | Jump height | Before, 3 hours , 24 hours and 48 hours after training. | |
Secondary | Changes in Jumping performance | Power | Before, 3 hours , 24 hours and 48 hours after training. | |
Secondary | Changes in Jumping performance | modified reactive strength index | Before, 3 hours , 24 hours and 48 hours after training. | |
Secondary | Changes in Jumping performance | leg stiffness | Before, 3 hours , 24 hours and 48 hours after training. | |
Secondary | Changes in Wingate performance | Peak power and average power | Before, 3 hours , 24 hours and 48 hours after training. | |
Secondary | Changes in Yoyo-intermittent recovery 1 performance | total length covered in the yo-yo test | Before, and 48 hours after training. | |
Secondary | Changes in Leg press performance | Total reps performed at 80% of 1RM | Before, 3 hours , 24 hours and 48 hours after training. | |
Secondary | Changes training volume | total volume performed during training (i.e set x reps x working weight) | Before, 3 hours , 24 hours and 48 hours after training. | |
Secondary | Differences in knee laxity | Measured with a Lachmeter | Baseline | |
Secondary | Changes in muscle soreness (VAS-score) | Subjects will raise and sit on a chair and immediately after answer a VAS-score (100mm line, from worst pain ever, to no pain at all.) | Before, 3 hours , 24 hours and 48 hours after training | |
Secondary | Blood analysis: Sex hormones, cortisol, inflammatory markers and markers of muscle damage | estradiol | Before, 3 hours , 24 hours and 48 hours after training | |
Secondary | Blood analysis: Sex hormones, cortisol, inflammatory markers and markers of muscle damage | testosterone | Before, 3 hours , 24 hours and 48 hours after training | |
Secondary | Blood analysis: Sex hormones, cortisol, inflammatory markers and markers of muscle damage | sex hormone-binding globulin | Before, 3 hours , 24 hours and 48 hours after training | |
Secondary | Blood analysis: Sex hormones, cortisol, inflammatory markers and markers of muscle damage | progesterone | Before, 3 hours , 24 hours and 48 hours after training | |
Secondary | Blood analysis: Sex hormones, cortisol, inflammatory markers and markers of muscle damage | follicle-stimulating hormone | Before, 3 hours , 24 hours and 48 hours after training | |
Secondary | Blood analysis: Sex hormones, cortisol, inflammatory markers and markers of muscle damage | luteinizing hormone | Before, 3 hours , 24 hours and 48 hours after training | |
Secondary | Blood analysis: Sex hormones, cortisol, inflammatory markers and markers of muscle damage | Creatine kinase | Before, 3 hours , 24 hours and 48 hours after training | |
Secondary | Blood analysis: Sex hormones, cortisol, inflammatory markers and markers of muscle damage | Lactate dehydrogenase | Before, 3 hours , 24 hours and 48 hours after training | |
Secondary | Blood analysis: Sex hormones, cortisol, inflammatory markers and markers of muscle damage | Myoglobin | Before, 3 hours , 24 hours and 48 hours after training | |
Secondary | Blood analysis: Sex hormones, cortisol, inflammatory markers and markers of muscle damage | Cortisol | Before, 3 hours , 24 hours and 48 hours after training | |
Secondary | Blood analysis: Sex hormones, cortisol, inflammatory markers and markers of muscle damage | C-reactive protein | Before, 3 hours , 24 hours and 48 hours after training | |
Secondary | Blood analysis: Sex hormones, cortisol, inflammatory markers and markers of muscle damage | tumor necrosis factor | Before, 3 hours , 24 hours and 48 hours after training | |
Secondary | Blood analysis: Sex hormones, cortisol, inflammatory markers and markers of muscle damage | IL-6 | Before, 3 hours , 24 hours and 48 hours after training |
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