Effects of Combined Rhodiola Rosea and Caffeine Supplementation on Dancesport Performance
RHO-CAF-DanceS
Effects of Caffeine, Rhodiola Rosea, and Combined Supplementation on Cowboy-Dance-Specific Explosive Power, Movement Stability, and Muscular Endurance in Male Collegiate Dancesport Athletes
1 other identifier
interventional
48
1 country
1
Brief Summary
This study evaluates the effects of caffeine, Rhodiola rosea, and their combined supplementation on dancesport-specific performance in male collegiate dancesport athletes. Forty-eight healthy male athletes aged 18 to 23 years will be randomly assigned to one of four groups: placebo control, caffeine, Rhodiola rosea, or combined Rhodiola rosea plus caffeine. All participants will complete the same four-week standardized cowboy-dance-specific training program. The caffeine group will receive caffeine at 3 mg·kg-¹ before testing, the Rhodiola rosea group will receive Rhodiola rosea at 2.4 g·day-¹ for four weeks, and the combined group will receive both supplementation strategies. The main purpose of this study is to determine whether these supplementation strategies improve cowboy-dance-specific explosive power, movement stability, repeated kicking performance, agility, muscular endurance, and perceived exertion. Main outcomes include the 180-degree kick straight angle, kick recoil angle, trunk anterior-posterior sway amplitude, and 30-second cowboy-kick success rate. Secondary outcomes include qualified kick count, balance, core stability, functional strength, rhythm accuracy, agility tests, hexagon jump performance, and session-RPE.
Trial Health
Trial Health Score
Automated assessment based on enrollment pace, timeline, and geographic reach
participants targeted
Target at P25-P50 for not_applicable
Started Apr 2026
Shorter than P25 for not_applicable
1 active site
Health score is calculated from publicly available data and should be used for screening purposes only.
Trial Relationships
Click on a node to explore related trials.
Study Timeline
Key milestones and dates
Study Start
First participant enrolled
April 15, 2026
CompletedPrimary Completion
Last participant's last visit for primary outcome
June 10, 2026
CompletedStudy Completion
Last participant's last visit for all outcomes
June 18, 2026
CompletedFirst Submitted
Initial submission to the registry
June 30, 2026
CompletedFirst Posted
Study publicly available on registry
July 8, 2026
CompletedJuly 8, 2026
June 1, 2026
2 months
June 30, 2026
July 1, 2026
Conditions
Keywords
Outcome Measures
Primary Outcomes (4)
180-degree kick straight angle
Maximum knee extension angle during the standardized cowboy-dance kick task. Higher values indicate better kick extension quality.
Baseline and immediately after 4-week intervention
Kick recoil angle
Maximum recoil angle of the kicking leg after the kick, reflecting braking control and preparation for the next beat. Higher values indicate better recovery control.
Baseline and immediately after 4-week intervention
Trunk anterior-posterior sway amplitude
Anterior-posterior trunk sway amplitude during continuous cowboy-dance kicking. Lower values indicate better trunk stability.
Baseline and immediately after 4-week intervention
30-second cowboy-kick success rate
Percentage of qualified kicks completed during a 30-second cowboy-dance kicking task consisting of 32 kicks.
Baseline and immediately after 4-week intervention
Secondary Outcomes (10)
30-second cowboy-kick qualified count
Baseline and immediately after 4-week intervention
Y-Balance Test composite score
Baseline and immediately after 4-week intervention
Bird-dog core stability hold time
Baseline and immediately after 4-week intervention
Lunge squat total qualified repetitions
Baseline and immediately after 4-week intervention
Step-up total qualified repetitions
Baseline and immediately after 4-week intervention
- +5 more secondary outcomes
Study Arms (4)
CTR: Placebo Control
PLACEBO COMPARATORParticipants received placebo capsules matched to the active supplements and completed the standardized four-week cowboy-dance-specific training program.
CAF: Caffeine
EXPERIMENTALParticipants received caffeine at 3 mg·kg-¹ 30 minutes before testing and completed the standardized four-week cowboy-dance-specific training program
RHO: Rhodiola Rosea
EXPERIMENTALParticipants received Rhodiola rosea supplementation at 2.4 g·day-¹ for four weeks and completed the standardized four-week cowboy-dance-specific training program.
RHO+CAF: Combined Supplementation
EXPERIMENTALParticipants received Rhodiola rosea at 2.4 g·day-¹ for four weeks plus caffeine at 3 mg·kg-¹ 30 minutes before testing, while completing the standardized four-week cowboy-dance-specific training program.
Interventions
Placebo capsules were matched to the active supplements in appearance, color, size, packaging, timing, and capsule number.
Caffeine was administered acutely at 3 mg·kg-¹ 30 minutes before testing.
Rhodiola rosea extract was administered at 2.4 g·day-¹ for four weeks, divided into two daily doses before breakfast and lunch.
All participants completed the same four-week standardized cowboy-dance-specific training program focusing on rhythm, repeated kicking, kick recoil control, trunk stability, functional strength, agility, and repeated movement quality.
Eligibility Criteria
You may qualify if:
- Completion of PAR-Q screening indicating suitability for high-intensity exercise testing.
- Written informed consent provided before participation.
You may not qualify if:
- Lower-limb, lumbar, or back injury that may interfere with testing. Use of medications or supplements that may interact with caffeine or Rhodiola rosea.
- Contraindication to caffeine or Rhodiola rosea supplementation. Regular intake of coffee, strong tea, energy drinks, other ergogenic supplements, alcohol, or caffeine-containing products within 3 months before enrollment.
- Smoking. Inability to maintain stable training, diet, sleep, and lifestyle habits during the study.
Contact the study team to confirm eligibility.
Sponsors & Collaborators
Study Sites (1)
Beijing Sport University
Beijing, Beijing Municipality, 100084, China
Related Publications (1)
Guest NS, VanDusseldorp TA, Nelson MT, Grgic J, Schoenfeld BJ, Jenkins NDM, Arent SM, Antonio J, Stout JR, Trexler ET, Smith-Ryan AE, Goldstein ER, Kalman DS, Campbell BI. International society of sports nutrition position stand: caffeine and exercise performance. J Int Soc Sports Nutr. 2021 Jan 2;18(1):1. doi: 10.1186/s12970-020-00383-4.
PMID: 33388079RESULT
Related Links
MeSH Terms
Interventions
Intervention Hierarchy (Ancestors)
Study Design
- Study Type
- interventional
- Phase
- not applicable
- Allocation
- RANDOMIZED
- Masking
- QUADRUPLE
- Who Masked
- PARTICIPANT, CARE PROVIDER, INVESTIGATOR, OUTCOMES ASSESSOR
- Masking Details
- Participants, training supervisors, investigators, and outcome assessors were blinded to group allocation. Active supplements and placebo capsules were matched in appearance, color, size, packaging, timing, and capsule number. Randomization codes were kept by an independent researcher who was not involved in training supervision, outcome assessment, or statistical analysis.
- Purpose
- OTHER
- Intervention Model
- PARALLEL
- Sponsor Type
- OTHER
- Responsible Party
- SPONSOR
Study Record Dates
First Submitted
June 30, 2026
First Posted
July 8, 2026
Study Start
April 15, 2026
Primary Completion
June 10, 2026
Study Completion
June 18, 2026
Last Updated
July 8, 2026
Record last verified: 2026-06
Data Sharing
- IPD Sharing
- Will not share
Individual participant data will not be publicly shared because of participant privacy and ethics restrictions. De-identified summary data may be made available upon reasonable request to the corresponding author.