>>It is a record for cumulative time in space.
>
>Yes, I was confused about that at first. But still, I think he has been months at a time in space, so there is still the potential of health problems due to muscle atrophy.

As in http://science.nasa.gov/headlines/y2002/30sept_spacemedicine.htm
"Right now, the chief countermeasure recommended by space doctors is simply exercise. Astronauts on the International Space Station work out about two hours a day, using treadmills, exercise bikes, and an IRED--a device specially developed to allow astronauts to do resistive or strength training."