NCT06300060

Synbiotic Supplementation in Cyclists

The Effect of a Synbiotic Formulation on Endurance Exercise Performance in Trained Cyclists: A Randomized, Double-Blinded, Placebo-Controlled, Parallel Trial

• Status: Completed
• Phase: N/A
• Study type: Interventional
• Enrollment: 22 (actual)
• Sponsor: University of Calgary · Academic / Other
• Sex: All
• Age: 18 Years – 45 Years
• Healthy volunteers: Accepted

Summary

The goal of this clinical trial is to assess the efficacy of a synbiotic blend on exercise performance and other exercise parameters in trained adult cyclists. It is hypothesized that those taking the synbiotic blend will have improved endurance exercise performance. The primary objective is to assess the impact of a synbiotic on 20km distance trial performance in 36 cyclists. Secondary objectives include assessing the impact of the synbiotic on exercise metabolism, body composition, gastrointestinal and immune health.

Detailed description

The goal of this randomized double-blinded clinical trial is to evaluate the potential beneficial effects of a synbiotic formulation on exercise performance in trained adult cyclists. The main questions it aims to answer are related to the Synbiotic effects on: * Cycling performance * Exercise metabolism * Gastrointestinal health * Immune system * Body composition * Fecal Short Chain Fatty Acids (SCFAs) * Fecal microbiome composition Participants will be recruited and, if consenting and eligible, will undergo the initial pre-testing phase for baseline assessment (4 on-site visits). Then, they will be randomized to receive the synbiotic or placebo and instructed to consume one sachet daily for 42 consecutive days. After 4-5 weeks of intervention (Day 33), post-testing phase will start, and participants will be asked to return to the site to perform post testing assessments (over 4 on-site visits). Study visits will occur as follows, V1 (Day -9), V2 (Day -6), V3 (Day -3), V4 (Day 0), V5 (Day 33), V6 (Day 36), V7 (Day 39), and V8 (Day 42). Researchers will compare the assessed outcomes to baseline in each group and evaluate the difference between groups following the synbiotic consumption to highlight any statistically and clinically relevant observations.

Conditions

• Exercise Endurance

Interventions

Type	Name	Description
DIETARY_SUPPLEMENT	Synbiotic	Combination of a probiotic and prebiotic. Daily administration in a single dose in powder form.
DIETARY_SUPPLEMENT	Placebo	Placebo. Daily administration in a single dose in powder form.

Timeline

• Start date: 2024-07-15
• Primary completion: 2024-12-23
• Completion: 2024-12-23
• First posted: 2024-03-08
• Last updated: 2025-12-10

Locations

1 site across 1 country: Canada