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Envihab Bed Rest Standard Measures: Postural Equilibrium Control (ESA_BRSM_Posture)
Principal Investigator
Research Area:
Species Studied
Scientific Name: Homo sapiens Species: Human


Postural Equilibrium Control is one of eleven International Bedrest Standard Measures conducted on healthy subjects at the :envihab facility in Cologne, Germany. The Postural Equilibrium Standard Measure will assess changes in motor coordination and sensory integration through Sensory Organization Tests (SOT) and Motor Control Tests (MCT). The SOT will objectively assess one’s ability to make effective use of (or suppress inappropriate) visual, vestibular, and proprioceptive information for balance control. The MCT will assess the crewmember's ability to quickly and automatically recover from unexpected support surface perturbations. 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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Motion perception
Postural equilibrium
Sensorimotor physiology

Data Information
Data Availability
Archiving in Progress. Some restricted access data exist for this experiment.
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Ellipse area
Length of ellipse anterior-posterior axis
Length of ellipse medial-lateral axis
Peak-to-peak sway angle along anterior-posterior axis
Peak-to-peak sway angle along medial-lateral axis
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Mission/Study Information
Mission Launch/Start Date Landing/End Date Duration
AGBRESA_1 03/25/2019 06/26/2019 93 days
AGBRESA_2 09/02/2019 12/23/2019 102 days
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