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Muscle Atrophy Research and Exercise System (MARES) Commissioning Part 2 (MARES_Comm_ 2)
Principal Investigator
Research Area:
Muscle Alterations and Atrophy Team
Muscle physiology
Species Studied
Scientific Name: Homo sapiens Species: Human

The Muscle Atrophy Research and Exercise System (MARES) is a physiological research facility operated in the International Space Station Columbus Orbital Facility. MARES will be used to carry out musculoskeletal, biomechanical, neuromuscular, and neurological physiology research, to study the effect of microgravity on the human being, and to evaluate the efficiency of the countermeasures against space environment-induced physiological effects. It can also be used to evaluate the performance of exercise test protocols. In order to fulfill these objectives, MARES is capable of assessing the strength of isolated muscle groups, around specific joints or on complete limbs, by measuring and controlling the interrelation between speed and torque/force as functions of time.

MARES commissioning encompasses two phases successively performed by NASA and European Space Agency (ESA). The first phase (which has been completed) was under NASA’s responsibility and encompassed rack reconfiguration, power tests and final stowed configuration assembly. This is followed by the ESA commissioning campaign, which is divided into two parts. This investigation focuses on the second on-orbit MARES commissioning session. The objective of this session is to test the on-orbit MARES Flight Model usability by human operators and subjects.

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Data Information
Data Availability
Archiving in progress. Data is not yet available for this experiment.


Mission/Study Information
Mission Launch/Start Date Landing/End Date Duration
Expedition 46 12/11/2015 03/02/2016 82 days
Expedition 47 03/02/2016 06/18/2016 108 days

Additional Information
Managing NASA Center
Johnson Space Center (JSC)
Responsible NASA Representative
Johnson Space Center LSDA Office
Project Manager: Pamela A. Bieri
Institutional Support
European Space Agency (ESA)