Electromyostimulation (EMS) of Astronauts in Spaceflight (Easymotion-2)

Enrolling by invitation · Not applicable

Conditions studied: Muscle Atrophy, Myotonia, Stiffness; Spine, Exercise Overtraining

In brief

This is a prospective spaceflight study involving an investigational non-risk device called the EasyMotionSkin for whole body electric muscle (myo) stimulation (WB-EMS) onboard the International Space Station (ISS). The purpose of this study is to show: * optimized exercise outcome with EMS in human spaceflight * demonstrate efficacy of EMS as alternative inflight exercise protocol * provide a time-saving and reliable EMS-assisted exercise protocol compliant to astronauts for later use in planetary habitats and future deep space exploration Eight (n=8) astronauts on long duration missions will take part in this study. This experiment uses the following hardware/software (HW \& SW): (A) EasymotionSkin suit (dry electrode muscle stimulation), B) non-invasive hand-held Myoton device (digitized passive muscle stiffness data collection). C) a customized Myoton body template suit (elastic yoga suit with customized anatomical reference labels to aid inflight Myoton data collection on dedicated perforated 2x2 cm small skin fields) at 5 different skin measurement points (MP), neck, back, shoulder, legs. Before and after flight the following tests will be done once: Myoton data collection, dynamometry strength test, magnetic resonance imaging (MRI) for baseline comparison. Researchers will compare data from a non EMS control group (non EMS Astronauts, retrospective) to see if changes of passive muscle stiffness is seen in EMS Astronauts before, during and after spaceflight

Key facts

Study ID
NCT06492057
Run by
Charite University, Berlin, Germany
People needed
12
Starts
2025-09-15
Expected to finish
2029-12-31
Last updated by the study team
2026-03-23

Who can join

Age: 40 and older, up to 60. Sex: any. Healthy volunteers: accepted.

You may qualify if…

You may not qualify if…

Where it is running

Full record on ClinicalTrials.gov

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