Muscle Atrophy Research and Exercise System

The Muscle Atrophy Research and Exercise System (MARES), part of the Human Research Facility (HRF), was launched on 5 April 2010 (STS-131) in a stowed position inside the HRF MARES Rack, integrated into a Multi-Purpose Logistics Module (MPLM) and transported to the International Space Station. When deployed, MARES was attached to the seat tracks of an International Standard Payload Rack (ISPR) located in the Columbus Laboratory.

MARES provides a flexible and accurate tool for studying the muscle-skeletal system in the microgravity environment. It will serve both the space research/human physiology communities, as well as the Medical Operations (MEDOPS) officers, who are responsible for maintaining crew health during long-duration space flight. MARES is capable of providing quantifiable stimuli to a wide range of space flight participants and accurately measuring these crew-members' muscle performance. Provided by Wikipedia