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Influence of Tea Extract on Maximal Voluntary Knee Contraction Following Downhill Jogging

NCT07113405 · Status: RECRUITING · Phase: NA · Type: INTERVENTIONAL · Enrollment: 60

Last updated 2026-05-04

No results posted yet for this study

Summary

In this research project, we want to investigate whether the combined intake of proteins and tea extract has an influence on muscle regeneration compared to the sole intake of proteins or a placebo product. In the study, you will be randomly assigned to one of 3 groups. Neither the research group nor you will know which group you are assigned to. The study lasts 5 days for you as a participant. During these 5 days you will have to attend a total of 5 appointments in our laboratory. The groups differ only in the intake of the regeneration product, otherwise all measurements and appointments are identical. You will jog downhill for 30 minutes on the first day in order to strain your muscles. In order to be able to draw conclusions about the regeneration of your muscles, we will carry out the following measurements on all 5 days: Blood sampling at the fingertip, ultrasound of the thigh muscle, pain tolerance of the thigh muscle, strength tests of the thigh muscle, muscle function of the thigh muscle and jumping performance.

Conditions

  • Muscle Recovery

Interventions

DIETARY_SUPPLEMENT

Protein and tea extract

Participants in this group will receive 4 times a recovery drink containing protein and tea extract.

DIETARY_SUPPLEMENT

Protein

Participants of this group will receive ten times a recovery drink containing only protein without tea extract.

DIETARY_SUPPLEMENT

Placebo

Participants of this group will receive 10 times a placebo containing no protein nor tea extract.

Sponsors & Collaborators

  • University of Fribourg

    lead OTHER

Study Design

Allocation
RANDOMIZED
Purpose
BASIC_SCIENCE
Masking
DOUBLE
Model
PARALLEL

Eligibility

Min Age
18 Years
Max Age
40 Years
Sex
ALL
Healthy Volunteers
Yes

Timeline & Regulatory

Start
2025-12-01
Primary Completion
2026-12-30
Completion
2026-12-30

Countries

  • Switzerland

Study Locations

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Read the full study record

This page highlights key information. For complete eligibility criteria, study locations, investigator contacts, and the full protocol, visit the original record on ClinicalTrials.gov.

View NCT07113405 on ClinicalTrials.gov