Fitbit alerts may boost brain and muscle health in seniors

NCT ID NCT06135740

Completed Disease control Sponsor: Tokyo University Source: ClinicalTrials.gov ↗

First seen Jun 25, 2026 · Last updated Jun 27, 2026 · Updated 1 time

Summary

This study tested whether personalized notifications from a Fitbit—about sleep, activity, and nutrition—could improve thinking skills and muscle mass in adults over 65. Over 350 older adults in Japan wore a Fitbit for 6 months and received automatic tips, while a control group got usual care. Researchers compared changes in memory, attention, and muscle strength between the groups.

What this could mean

Our plain-language read of the trial. This is informational only — not medical advice or a prediction.

Active substance: Fitbit device with automated notifications on sleep, activity, and nutrition, plus nutritional supplementation and exercise promotion
What this could lead to: If successful, this approach could offer a simple, low-cost way to help older adults maintain cognitive function and muscle mass, potentially delaying frailty.
What could go wrong: This is a completed trial, but the intervention is behavioral and device-based, so results may vary by individual adherence and may not apply outside Japan.

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Conditions

The condition(s) this trial relates to.

cognitive disorder Frailty Sarcopenia

As listed by the trial registrant

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

COGNITION DISORDERS IN OLD AGE COGNITIVE FUNCTION FRAILTY/SARCOPENIA MCI

Contacts and locations

Locations

Graduate School of Frontier Sciences, The University of Tokyo

Kashiwa, Chiba, 2778562, Japan

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