Trial · NCT06853600
Effects of Rhodiola Rosea Supplementation on Mental Fatigue, Visuo-cognitive Processing, and Strength Performance
NCT06853600, Not applicable, Completed, Universidad de Granada
3 sourcestrials-2026-11-12-0.5.0
Cite this record
ConductScience Library. Effects of Rhodiola Rosea Supplementation on Mental Fatigue, Visuo-cognitive Processing, and Strength Performance. Trials, record NCT06853600. Release trials-2026-11-12-0.5.0, 12 Nov 2026. https://conductscience.org/library/trials/NCT06853600
On this page
Trial
As registered on ClinicalTrials.gov, in the graph's capture of the registry.
- Title
- Effects of Rhodiola Rosea Supplementation on Mental Fatigue, Visuo-cognitive Processing, and Strength Performance
- NCT number
- NCT06853600
- Status
- Completed
- Phases
- Not applicable
- Enrollment
- 25 participants, actual
- Lead sponsor
- Universidad de Granada
- Conditions
- Sport Medicine
- Interventions
- Rhodiola Rosea Capsules
- First posted
- 2025-03-03
- Last updated
- 2025-03-03
Source ClinicalTrials.gov
Registered outcomes3
Each outcome the trial registered, primary first, in ClinicalTrials.gov's words.
| List | Outcome | Time frame | Description |
|---|---|---|---|
| Primary | Strength training | During training | The general warm-up mirrored that of the 1RM assessment. Thereafter, the specific warm-up included for each exercise 2 sets of 3 repetitions at 30% and 50% of 1RM, and a final set of 2 repetitions at 70% of 1RM. The training regimen consisted of 8 alternating sets (4 sets each) of bench press and bench pull, with a 2-minute rest period between sets, performed at 70% of the 1RM load established during the preliminary testing session. Sets were terminated when 2 consecutive repetitions were performed at a MV below 0.35 m·s-1 for the bench press and 0.60 m·s-1 for the bench pull. Participants were encouraged to perform all repetitions at maximal intent, and they received real-time MV feedback (GymAware RS; Kinetic Performance Technologies, Canberra, Australia). Strength performance was assessed by recording the number of repetitions completed (Nrep) and the velocity of the fastest repetition (MVfastest) in each set. The OMNI-Resistance Exercise Scale (OMNI-RES) of perceived exertion was |
| Secondary | MOT test | Baseline (before training) and immediately after training | In line with the method used by Vera et al. \[26\] for the MOT test, eight identical black balls (each with a diameter of 1.8 cm) were displayed on a white square background (32.5 cm, luminance of 107 cd/m²) subtending a visual angle of 36°. The stimuli were presented on a 27-inch television monitor (LS27C330GAUXEN) positioned 50 cm away from the participant. At the beginning of each trial, three of the balls were randomly illuminated in green for 2 seconds, after which they reverted to their original black colour. Participants were instructed to track the selected balls for a duration of 10 seconds. No specific strategy was suggested for completing the task, and participants were allowed to use natural eye movements, mirroring real-world scenarios \[27,28\]. None of the participants had prior experience with the MOT task. The balls moved along linear paths at a constant speed, changing direction only when colliding with each other or the walls. After the 10-second tracking period, all t |
| Secondary | Cognitively demanding and control tasks | Baseline (before training) | A 30-minutes incongruent Stroop task was used to induce mental fatigue, which requires response inhibition and sustained attention \[24\] and has demonstrated to be a valid intervention for inducing mental fatigue and impairing physical performance \[1,25\]. In the incongruent Stroop colour word task, participants were shown lists of colour words (e.g., "blue", "red", "yellow", or "green") on the screen, where the ink colour of the letters did not match the word itself (for example, the word "blue" might be displayed in green ink). For each word, participants were instructed to select the ink colour rather than reading the word. After each response, a new word was presented. The control condition consisted of watching an emotionally neutral documentary during 30 minutes in the same screen (LS27C330GAUXEN, 27", Samsung, Seoul, Korea) used for the Stroop task. Participants remained seated in the same room and in the same position for both interventions (50 cm from the screen). |
Source ClinicalTrials.gov
Outcomes0
Each outcome the trial posted results for, in ClinicalTrials.gov's words.
None in this release.
Results by group0
Each measurement the trial posted, group by group, in the words and numbers it posted.
None in this release.
Participant flow0
How many started, completed or left each group, period by period.
None in this release.
Adverse events0
Each adverse event the trial posted, group by group: the participants affected out of those at risk.
None in this release.
Adverse event totals0
The totals the trial posted for each group.
None in this release.
Papers2
The papers the trial lists on ClinicalTrials.gov.
Grants0
The grants NIH RePORTER links to the trial, newest funded first: NIH's, and some of AHRQ's, CDC's, FDA's and VA's. Each shows its title, principal investigators, organization and funder in its newest year.
None in this release.
Trial comparisons0
Comparisons of the trial's two groups, calculated by ConductScience from the counts it posted.
None in this release.
Tests1
The ConductCognition tests this trial's registered outcomes name, as ScienceGraph matched them in trial-tests-2026-11-12-0.2.1.
| Test | Named as |
|---|---|
| Stroop Color-Word Test | Secondary outcome |
Source ConductCognition
Data dates
The day each source was copied for this release.
Sources 3
- ClinicalTrials.gov's posted results, through CTTI's AACTFreely available. Acknowledgement requested
- ClinicalTrials.govNo license stated
- NIH RePORTER's clinical studies and project filesPublic domain
Each source's terms
- ClinicalTrials.gov's posted results, through CTTI's AACTClinicalTrials.gov data via Aggregate Analysis of ClinicalTrials.gov (AACT), CTTI. CTTI makes its materials freely available and requests acknowledgement. https://aact.ctti-clinicaltrials.org/documentation/299
- ClinicalTrials.govnone stated
- NIH RePORTER's clinical studies and project filesPublic domain (NIH RePORTER)
ClinicalTrials.gov's data carry an international copyright outside the United States: https://clinicaltrials.gov/about-site/terms-conditions.
For software
Read this trial from software.
The record and each of its lists are JSON, twenty rows a page. No key.
GET https://conductscience.org/api/trials/v1/NCT06853600
GET https://conductscience.org/api/trials/v1/NCT06853600/registered