Trial · NCT07771556
7-Day Caffeine and Upper-Body Power in Active Women
NCT07771556, Not applicable, Completed, Birjand University of Medical Sciences
3 sourcestrials-2026-11-12-0.5.0
Cite this record
ConductScience Library. 7-Day Caffeine and Upper-Body Power in Active Women. Trials, record NCT07771556. Release trials-2026-11-12-0.5.0, 12 Nov 2026. https://conductscience.org/library/trials/NCT07771556
On this page
Trial
As registered on ClinicalTrials.gov, in the graph's capture of the registry.
- Title
- 7-Day Caffeine and Upper-Body Power in Active Women
- NCT number
- NCT07771556
- Status
- Completed
- Phases
- Not applicable
- Enrollment
- 30 participants, actual
- Lead sponsor
- Birjand University of Medical Sciences
- Conditions
- Caffeine, Exercise, Physical Fitness
- Interventions
- Caffeine, Placebo
- First posted
- 2026-08-18
- Last updated
- 2026-08-18
Source ClinicalTrials.gov
Registered outcomes8
Each outcome the trial registered, primary first, in ClinicalTrials.gov's words.
| List | Outcome | Time frame | Description |
|---|---|---|---|
| Primary | Change in Upper-Body Peak Anaerobic Power | Measured 90 minutes post-ingestion on Day 1 and Day 7. | Peak power output (W·kg-¹) measured during a 20-second upper-body Wingate test on a cycle ergometer (Monark 891 E). |
| Secondary | Change in Cognitive Performance | Measured at baseline, 90 minutes post-ingestion, and 30 minutes post-exercise on Day 1 and Day 7. | Cognitive performance assessed using the Golden Stroop Test (color-word interference task). The score represents the number of correct responses in the third part of the test (incongruent condition) within 45 seconds. |
| Secondary | Change in RMSSD | Measured at baseline, 90 minutes post-ingestion, and 30 minutes post-exercise on Day 1 and Day 7. | Root mean square of successive differences (ms) measured using a Polar H10 heart rate sensor. |
| Secondary | Change in SDNN | Measured at baseline, 90 minutes post-ingestion, and 30 minutes post-exercise on Day 1 and Day 7. | Standard deviation of normal-to-normal intervals (ms) measured using a Polar H10 heart rate sensor. |
| Secondary | Change in LF Power | Measured at baseline, 90 minutes post-ingestion, and 30 minutes post-exercise on Day 1 and Day 7. | Low-frequency power (ms²) measured using a Polar H10 heart rate sensor. |
| Secondary | Change in HF Power | Measured at baseline, 90 minutes post-ingestion, and 30 minutes post-exercise on Day 1 and Day 7. | High-frequency power (ms²) measured using a Polar H10 heart rate sensor. |
| Secondary | Change in LF/HF Ratio | Measured at baseline, 90 minutes post-ingestion, and 30 minutes post-exercise on Day 1 and Day 7. | Ratio of low-frequency to high-frequency power (dimensionless) measured using a Polar H10 heart rate sensor. |
| Secondary | Change in Total Power (TP) | Measured at baseline, 90 minutes post-ingestion, and 30 minutes post-exercise on Day 1 and Day 7. | Total power (ms²) measured using a Polar H10 heart rate sensor. |
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.
Papers0
The papers the trial lists on ClinicalTrials.gov.
None in this release.
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/NCT07771556
GET https://conductscience.org/api/trials/v1/NCT07771556/registered