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Combined Caffeine and Rhodiola Rosea on Aerial Duel Performance in Soccer

NCT07458594 · Status: COMPLETED · Phase: NA · Type: INTERVENTIONAL · Enrollment: 96

Last updated 2026-03-09

No results posted yet for this study

Summary

This study will examine whether caffeine (CAF) and Rhodiola rosea (RHO) supplementation, taken alone or in combination, can improve explosive performance and soccer-specific aerial duel performance in trained male soccer players. In a randomized, double-blind, placebo-controlled, parallel design, participants will be assigned to placebo, RHO, CAF, or RHO+CAF for 4 weeks. Performance outcomes will be assessed before and after the intervention using countermovement jump measures (including early take-off impulse) and standardized heading tests (heading reach height, ball exit velocity, and heading duel success rate), with additional measures of neck isometric strength and perceived exertion.

Conditions

  • Aerial Duel Performance in Soccer Players

Interventions

DIETARY_SUPPLEMENT

Caffeine

Anhydrous caffeine capsules administered at a dose of 3 mg/kg body weight. Taken as a single dose 30 minutes prior to the physical performance tests.

DIETARY_SUPPLEMENT

Rhodiola rosea extract

Standardized Rhodiola rosea extract capsules. Daily total dosage of 2.4 g (containing approx. 12 mg salidroside), taken twice daily (before breakfast and lunch) for 30 days.

DIETARY_SUPPLEMENT

Placebo

Appearance-matched capsules containing inert ingredients (starch or rice flour).

Sponsors & Collaborators

  • Beijing Sport University

    lead OTHER

Study Design

Allocation
RANDOMIZED
Purpose
OTHER
Masking
TRIPLE
Model
PARALLEL

Eligibility

Min Age
18 Years
Max Age
30 Years
Sex
MALE
Healthy Volunteers
Yes

Timeline & Regulatory

Start
2025-10-30
Primary Completion
2025-12-27
Completion
2026-01-03

Countries

  • China

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 NCT07458594 on ClinicalTrials.gov