NCT06133751

Effect of 8-week Supplementation With Black Chokeberry on Recovery in Highly Trained Rowers

Completed Phase 4 Last updated 26 April 2024

What this trial tests

Phase 4 trial testing black chokeberry (Aronia melanocarpa) in Inflammation;Muscle(S) in 15 participants. Completed in 10 June 2023.

Timeline

1 April 2023

Primary endpoint
10 June 2023

10 June 2023

Quick facts

Lead sponsor	Poznan University of Physical Education
Phase	Phase 4
Status	Completed
Study type	INTERVENTIONAL
Allocation	randomized
Design	parallel
Masking	single
Primary purpose	basic science
Enrollment	15
Start date	1 April 2023
Primary completion	10 June 2023
Estimated completion	10 June 2023
Sites	1 location across Poland

Drugs / interventions tested

• black chokeberry (Aronia melanocarpa) — full drug profile →
• Placebo

Conditions studied

• Inflammation;Muscle(S) — all drugs for Inflammation;Muscle(S) →
• Oxidative Stress Injury — all drugs for Oxidative Stress Injury →
• Permeability; Increased — all drugs for Permeability; Increased →

Sponsor

Poznan University of Physical Education

Who can join

Adults 18 to 24, male only, with Inflammation;Muscle(S) or Oxidative Stress Injury. Patients with the condition only — healthy volunteers not accepted.

Sponsor's own description

Purpose: To analyze the effects of 8-week supplementation with anthocyanin compounds contained in black chokeberry (Aronia melanocarpa) on indicators of inflammation and oxidative stress.

Hypothesis: Supplementation with anti-inflammatory and antioxidant anthocyanin compounds improves recovery from intense exercise by reducing inflammation and oxidative stress in highly trained rowers

The study consisted of a nutritional intervention (supplementation) - with compounds of natural origin - chokeberry extract (capsules) - 18% standardized for anthocyanin content (dose 3 x 200 mg per day) - that is, 107 mg of pure anthocyanins per day, or a placebo product that was made from chokeberry fiber

Study plan I term of the study

1. Conduct a body composition analysis, body height, food diary, self reported gastrointestinal scale
2. Collection of blood samples before the exercise test for biochemical determinations.
3. Exercise test of 2000m on a rowing ergometer.
4. Collection of blood immediately after exercise and 1 hours after
5. Collection of blood for biochemical determinations 24 hours after the end of the exercise test
6. Supplementation for 8 weeks 2nd test date Repeat the measurements from the 1st test date.

Participants: Youth National Rowing Team of Poland Experimental procedure: Observation of the effect of black chokeberry consumption on parameters of inflammation, oxidative stress and intestinal parameters during the immediate start preparation period in highly skilled rowers.

Publications & conference data

1 peer-reviewed publication reference this trial (live from Europe PMC):

1. A single 2000-meter exercise test to assess exercise adaptation in elite rowers during the preparatory phase.
   Kaczmarczyk S, Kasperska A, Dziewiecka H, Ostapiuk-Karolczuk J, et al · · 2025 · cited 1× · PMID 40873756 · DOI 10.3389/fphys.2025.1544637