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Envihab Bed Rest Standard Measures: Muscle Strength (ESA_BRSM_Muscle_Stre)
Principal Investigator
Research Area:
Muscle physiology
Species Studied
Scientific Name: Homo sapiens Species: Human


Muscle Strength is one of eleven International Bedrest Standard Measures conducted on healthy subjects at the :envihab facility in Cologne, Germany. Muscle strength will be assessed through isometric and isokinetic muscle testing. Isometric maximum voluntary contractions will provide a very fast and reliable measurement of isometric strength of the knee and ankle. Isokinetic muscle testing will assess the strength of the knee, ankle, and trunk musculature. The purpose of the standard measures project is to populate a repository with data that enables high-level monitoring of countermeasure effectiveness and meaningful interpretation of health and performance outcomes. These standard measures will support future, hypothesis-driven research that enables planetary missions by providing an optimized minimal set of measures captured from subjects. These measures will be available to other studies under data sharing agreements as well as undergo analysis to understand risk posture.

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Muscle strength
Neuromuscular power

Data Information
Data Availability
Archiving in Progress. Some restricted access data exist for this experiment.
Data Sets+ Request data

Ankle concentric strength, extension
Ankle concentric strength, flexion
Ankle eccentric strength, extension
Ankle eccentric strength, flexion
Foot dorsal flexion
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Mission/Study Information
Mission Launch/Start Date Landing/End Date Duration
VaPER 10/02/2017 12/04/2017 63 days

Additional Information
Managing NASA Center
Johnson Space Center (JSC)
Responsible NASA Representative
Institutional Support
National Aeronautics and Space Administration (NASA)
Alternate Experiment Name
Proposal Date
Proposal Source