Effect of Supplementation With Anthocyanins on Iron Metabolism in Female Swimmers
Status:
COMPLETED
Trial end date:
2023-12-28
Target enrollment:
Participant gender:
Summary
The study included 8-weeks supplementation of black chokeberry extract with 18% standardization of the anthocyanins content (dose 2×200 mg per day), or a placebo product that was made from chokeberry fiber.
Purpose:
The aim of the study is effectiveness check of black chokeberry intake as a potential factor which, due to its ability to reduce inflammation and chelate iron ions, will have an impact on minimizing undesirable changes in the red blood cell system.
Hypothesis:
Main hypothesis: Supplementation of black chokeberry (Aronia melanocarpa) has a positive effect on iron economy of female swimmers.
Auxiliary hypotheses:
1. Supplementation of black chokeberry enhances the antioxidant status and has a positive effect on the prooxidant-antioxidant balance.
2. Supplementation of black chokeberry reduce inflammation induced by intensive exercises, by reducing inflammatory markers.
Study plan:
Before first term of the study:
Control of Menstrual Cycle Phases since March 2023 (installing the application on the phone - Menstrual Period Tracker calendar).
First term of the study:
1. Menstrual cycle control survey.
2. Conduct a body composition analysis.
3. Collection of blood samples before the exercise test for biochemical determinations.
4. Exercise test in the swimming pool - crawl style intensive test (800 m + 200 m + 50 m).
5. Collection of blood immediately after exercise and 3 hours later.
6. Supplementation for nearly 56 days, depending on the length of the menstrual cycle.
Second term of the study:
Repeat the measurements from the 1st date of test.
Participants: The group of selective and homogeneous female swimmers, who train swimming intensively and attend the Sports Championship School Complex.