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Space medicine · International Space Station

Muscle atrophy

Human spaceflight

Overview

Without gravity to work against, muscles weaken in space; resistance exercise aboard stations helps crews maintain strength.

Knowledge connections

Sources

The primary and reference sources this topic draws on.

  • NASANational Aeronautics and Space Administration

    Mission data, planetary science, space telescopes, and public-domain imagery.

    Most NASA-produced imagery is in the public domain; individual items are checked for usage terms before publication.