Trial · NCT07466732
Effects of Caffeine Ingestion on Morning Cognitive and Muscle Repeated Sprint Performance in Males
NCT07466732, Early phase 1, Enrolling by invitation, Liverpool John Moores University
3 sourcestrials-2026-11-12-0.5.0
Cite this record
ConductScience Library. Effects of Caffeine Ingestion on Morning Cognitive and Muscle Repeated Sprint Performance in Males. Trials, record NCT07466732. Release trials-2026-11-12-0.5.0, 12 Nov 2026. https://conductscience.org/library/trials/NCT07466732
On this page
Trial
As registered on ClinicalTrials.gov, in the graph's capture of the registry.
- Title
- Effects of Caffeine Ingestion on Morning Cognitive and Muscle Repeated Sprint Performance in Males
- NCT number
- NCT07466732
- Status
- Enrolling by invitation
- Phases
- Early phase 1
- Enrollment
- 15 participants, estimated
- Lead sponsor
- Liverpool John Moores University
- Conditions
- Caffeine, Placebo - Control, No Pill
- Interventions
- Caffeine, Placabo, No Pill
- First posted
- 2026-03-12
- Last updated
- 2026-03-13
Source ClinicalTrials.gov
Registered outcomes20
Each outcome the trial registered, primary first, in ClinicalTrials.gov's words.
| List | Outcome | Time frame | Description |
|---|---|---|---|
| Primary | Morning repeated sprint performance test | From enrolment to last experimental session (~4 weeks) | Morning repeated sprint performance test (10 x 20 m with 30 s recovery) on a vulcanised surfaced runway. With time recorded at 5, 10, 15 and 20 m in seconds. |
| Primary | Morning repeated sprint performance test heart rate | From familiarisation to the final experimental session (~4 weeks). | Morning repeated sprint performance test (10 x 20 m with 30 s recovery) on a vulcanised surfaced runway. With heart rate using a heart rate monitor recorded at the end of each sprint. Takes \~ 1 second. |
| Primary | Rating of perceived exertion every sprint | From familiarisation to the final experimental session (~4 weeks) | Morning repeated sprint performance test (10 x 20 m with 30 s recovery) on a vulcanised surfaced runway. With ratine of perceived exertion recorded at the end of each sprint. Takes \~ 1 second. Measured on a 6 (no exertion) to 20 (maximal exertion) scale. |
| Primary | Blood lactate and glucose at the end of the 10 sprints | From enrolment to last experimental session (4 weeks) | Blood taken from the finger tip and analysed for lactate and glucose levels in mmols. Takes 10 s. |
| Primary | Core body temperature | From enrolment to last experimental session (4 weeks) | Ear temperature taken at rest and after the warmup. Measured in degrees Celsius. Takes 3 seconds. |
| Primary | Morning Rey Auditory Verbal Learning Test | From familiarisation to the final experimental session (~4 weeks) | Rey Auditory Verbal Learning Test: The RAVLT is a neuropsychological assessment designed to evaluate verbal memory. The test is designed as a list-learning paradigm in which the volunteer hears a list of 15 nouns and is asked to recall as many words from the list as possible. The number correct and the number that were given by the participant but not on the list (intrusions) are noted. This process is re-peated 4 more times. The process is repeated but with a second interference list (List B) is presented in the same manner, and the participant is asked to recall as many words as possible from List B and scoring recorded. . After the interference trial, the participant is immediately asked to recall the words from List A, which they heard five times previously and the number of correct words and intrusions are recorded. RAVTL total number, number of dis-tractions and retention are recorded and analysed. |
| Primary | Morning Stroop word-colour interference test | From familiarisation to the final experimental session (~4 weeks) | Stroop word-colour interference test. The participants were asked to read out their responses to words or colours for 45 s as quickly as possible and to leave no errors uncorrected. This was filmed and the number of errors and total amount completed was recorded and analysed. The first sheet had text (red, blue, yellow, black and green) in black ink (naming word test, W). The second sheet had blocks of colour corresponding to the text on the first sheet (naming colour test, C). With the third sheet, the participants had to read out the word (which was coloured differently to the word, e.g., the word was yellow and the colour red, referred to as the naming colour of word test, CW) and for the fourth sheet, the participants had to read out the colon (which was wrongly named, e.g., the colour was yellow but the word was red, referred to as the naming of word not colour test, WC). In this fourth sheet, the words were printed in the reverse order to the third sheet. |
| Secondary | Morning grip strength | Time Frame: From enrolment to last experimental session (4 weeks) | Morning grip strength assessed from left and right grip strength on a dynamometer (kg). Takes 4 minutes. |
| Secondary | Vertical jump (Counter movement Jump and hands on hips - best of 3) | From enrolment to last experimental session (4 weeks)] | Vertical jump height test (with hands on hips and countermovement jump to measure flight time and height reached; Optojump Next, Microgate, UK. For jump tests variables will be collected on a laptop with associated software (Optojump Next, Microgate, UK). Measured in cm of height. |
| Secondary | Witty Cognitive agility test 2x 90 s | From enrolment to last experimental session (4 weeks)] | Performing Witty cognitive agility test (90 s responding to 6 lights on a metal frame where some are at waist level, some shoulder and some at head height at various distances from the volunteer). After each response the participant retreats behind a 1 m line back to starting position (Witty SEM system, Microgate, UK) - test done two times. Each light blocked and the light on the frame was recorded. From far left to far right the lights were numbered 1 to 5 and time was measured in milli seconds. |
1 to 10 of 20Source ClinicalTrials.gov
See all 20 registered outcomesOutcomes0
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.
Papers4
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.
Tests3
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 | Source |
|---|---|---|
| Verbal Learning | Primary outcome | ConductCognition |
| Trail Making Test A | Secondary outcome | ConductCognition |
| Trail Making Test B | Secondary outcome | 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/NCT07466732
GET https://conductscience.org/api/trials/v1/NCT07466732/registered