1. Muscle stiffness indicating mission crew health in space
- Author
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Britt Schoenrock, Paul E. Muckelt, Maria Hastermann, Kirsten Albracht, Robert MacGregor, David Martin, Hans-Christian Gunga, Michele Salanova, Maria J. Stokes, Martin B. Warner, and Dieter Blottner
- Subjects
Medicine ,Science - Abstract
Abstract Muscle function is compromised by gravitational unloading in space affecting overall musculoskeletal health. Astronauts perform daily exercise programmes to mitigate these effects but knowing which muscles to target would optimise effectiveness. Accurate inflight assessment to inform exercise programmes is critical due to lack of technologies suitable for spaceflight. Changes in mechanical properties indicate muscle health status and can be measured rapidly and non-invasively using novel technology. A hand-held MyotonPRO device enabled monitoring of muscle health for the first time in spaceflight (> 180 days). Greater/maintained stiffness indicated countermeasures were effective. Tissue stiffness was preserved in the majority of muscles (neck, shoulder, back, thigh) but Tibialis Anterior (foot lever muscle) stiffness decreased inflight vs. preflight (p
- Published
- 2024
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