The MARES on the ISS (not Randy Bresnik, though)
August 7, astronauts Randy Bresnik and Paolo Nespoli set up the Muscle Atrophy Research and Exercise System (MARES) on the International Space Station. It will be used for research on musculoskeletal, biomechanical and neuromuscular human physiology to understand the effects of microgravity on human muscular system. Perhaps it can discover ways to prevent muscular atrophy, which can occur in space.
See the time-lapse video of Bresnik and Nespoli assembling the MARES machine on the ISS.