Space muscle saver? flywheel workout tested for astronauts

NCT ID NCT06631053

Recruiting now Knowledge-focused Sponsor: Lance Bollinger Source: ClinicalTrials.gov ↗

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

Summary

This study tests whether a type of exercise using a flywheel machine can help prevent muscle loss and weakness during space travel. Sixteen healthy adults who exercise regularly will take part. They will use crutches and a special shoe to mimic the reduced weight-bearing of space, and some will do the flywheel workouts to see if it protects their muscles.

What this could mean

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

Active substance: velocity-based flywheel inertial training (FIT) exercise
What this could lead to: If successful, this could lead to better exercise programs for astronauts to prevent muscle and strength loss during long space missions.
What could go wrong: This is a small, early-stage study in healthy adults on Earth, not in space. Results may not translate to real spaceflight conditions or to other populations.

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Conditions

The condition(s) this trial relates to.

Motor Activity Muscle Weakness muscular atrophy

As listed by the trial registrant

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

MUSCLE ATROPHY MUSCLE WEAKNESS

Contacts and locations

Locations

University of Kentucky
RECRUITING

Lexington, Kentucky, 40506, United States

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