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Caffeine's secret power: boosting workouts for seniors?

NCT ID NCT06618261

Knowledge-focused Sponsor: Alberto Pérez-López Source: ClinicalTrials.gov ↗

What the study statuses mean

This study's is highlighted.

Recruitment status, easiest to join first

Recruiting now
This trial is taking on new participants right now.
Not yet recruiting
Registered, but not yet taking participants.
By invitation only
Not open to general applications. Only people the study team invites can take part.
Paused
Paused for now. It may or may not start again.
Ongoing This study
Running, but no longer taking on new participants.
Completed
The trial has finished. Results may not be published yet.
Stopped early
Stopped early, before it reached the end. That can be for many reasons, including safety.
Cancelled
Cancelled before anyone took part.

Expanded access (not trials)

Expanded access
Not a trial. This treatment can be requested outside a study, case by case, for people who qualify.
Expanded access (paused)
Not a trial. The treatment can normally be requested outside a study, but is unavailable right now.
Expanded access (ended)
Not a trial. The treatment could once be requested outside a study, but no longer can.
Approved
The treatment has been approved, so it is available normally rather than through this programme.

When the status isn't known

Details not published
The full record has not been published yet, so there is little to show here.
Status unknown
This status has not been confirmed recently, so it may be out of date.

First seen Jun 27, 2026 · Last updated Jun 27, 2026

Summary

This study looks at how taking caffeine, both once and over time, affects muscle strength and power in older adults who do resistance training. Researchers will measure things like lifting speed and power in 48 active men and women aged 55 and older. The goal is to understand if caffeine can help improve the benefits of strength training in this age group.

This is an AI summary of the original study and may miss details. Read our disclaimer.

Study facts

What this study's own registry entry says, in plain language.

Phase

Not a phased trial

Phase numbers describe drug development. The registry uses this when they do not apply, as it does for trials of devices, procedures or behaviour changes, and for observational studies.

Participants

About 48 people

The number the study aims to enrol. It can still change while the study runs.

Started

Jan 2024

Expected to finish

Jul 2026

An estimate. End dates often move.

Lead sponsor

Other sponsor

The registry's catch-all category, for sponsors it does not file as a company, a government agency, or a research network.

Who can take part

This study's own entry requirements. Only the study team can say for certain whether you qualify.

Ages

55 years and older

Sex

Anyone

Healthy volunteers

Accepted

You do not need to have the condition being studied to take part.

Show the full entry requirements

Copied word for word from the study's registry entry, so the wording is the study team's rather than ours.

Inclusion Criteria: * Age between ≥ 55 * Body mass index (BMI) ≥ 30 kg/m². * Physically active subjects (\>150 min/week of moderate exercise). * Healthy men and women without neurological, cardiometabolic, immunological, or physical conditions that prevent them from performing physical exercise. * Participants capable of performing the tests. Exclusion Criteria: * History of neuromuscular, cardiac, or diseases that could affect liver or muscle metabolism. * Use of drugs or other stimulants that interfere with caffeine intake and intestinal absorption during the tests and study. * Having undergone prolonged periods of forced physical inactivity during the 6 months prior to the study. * Performing strenuous exercise within 48 hours prior to the tests. * Failing to replicate the same food intake on the two experimental days. * Consuming caffeine after 6 PM on the day prior to training or testing.

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As listed by the trial registrant

The condition terms exactly as the trial's registrant entered them.

Caffeine and resistance training

Contacts and locations

Locations

  • Facultad de Medicina y Ciencias de la Salud. Universidad de Alcalá

    Alcalá de Henares, 28805, Spain

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