Kirk, 52, who has been largely out of sight since he was stricken in January, said in a written statement he was walking and working out on a stair climbing , machine to build up his endurance and mobility.
"I walked an average of 3,677 steps per day, a total of 14.79 miles over ground and on the treadmill, and up 145 flights of stairs," Kirk calculated.
The rigorous program is part of a trial on the benefits of walking under way at the Rehabilitation Institute of Chicago, the Chicago Tribune said Saturday.
The newspaper noted Kirk, a naval reserve intelligence officer, made no predictions on when he might resume his Senate duties.
Kirk met face-to-face Thursday with Rep. Judy Biggert, R-Ill., at his home in Highland Park. Biggert told the Tribune her colleague looked good. "He's doing well," she said. "I think he's eager to get back, but I imagine that he will return (to Washington) whenever the doctors tell him he can."
Aaron Carter is still in love with Hilary Duff
Millions of Getty images now available for free via embed tool