HIIT boosts strength and mobility in seniors, small study finds
NCT ID NCT07170579
First seen Jun 25, 2026 · Last updated Jun 26, 2026 · Updated 1 time
Summary
This study looked at whether high-intensity interval training (HIIT) can improve physical fitness in older adults. Thirty-nine people aged 60 and older did HIIT three times a week for 60 minutes. After the program, they showed better strength, flexibility, aerobic endurance, and agility. The findings suggest HIIT may be a safe and effective way to help seniors stay active and independent.
What this could mean
Our plain-language read of the trial. This is informational only, not medical advice or a prediction.
- Active substance
- High-Intensity Interval Training (HIIT) exercise program
- What this could lead to
- If this approach is confirmed, it could offer a time-efficient exercise strategy to help older adults maintain independence and physical function as they age.
- What could go wrong
- This was a small, completed study with only 39 participants, so results may not apply to all older adults. The long-term effects and safety in frailer populations are not yet known.
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
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39 people
The number who actually took part.
- Started
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Apr 2024
- Finished
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Aug 2025
- Lead sponsor
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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
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60 years and older
- Sex
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Anyone
- Healthy volunteers
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Not accepted
This study is not open to healthy volunteers. The entry requirements below say who it is open to.
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Copied word for word from the study's registry entry, so the wording is the study team's rather than ours.
Inclusion Criteria: * Community-dwelling individuals aged 60 years or older * Able to walk independently without assistive devices * Sufficient cognitive ability to follow instructions and participate in assessments * Medically stable and cleared for physical activity by a healthcare provider * No current participation in structured exercise programs * Willingness to participate in the intervention and attend scheduled assessments * Provided written informed consent Exclusion Criteria: * Individuals younger than 60 years * Severe musculoskeletal, cardiovascular, or neurological conditions that contraindicate physical exercise * Uncontrolled hypertension or diabetes * Recent surgery or hospitalization in the past 6 months * Severe visual or auditory impairments that limit test performance * Use of mobility aids (e.g., walker or cane for ambulation) * Participation in another clinical trial simultaneously
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Conditions
The condition(s) this trial relates to.
As listed by the trial registrant
The condition terms exactly as the trial's registrant entered them.
Contacts and locations
Locations
-
Instituto Politécnico de Bragança
Bragança, 5300-253, Portugal
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