(CNN) - Nearly four months after suffering a severe stroke to the right side of his brain, Republican Sen. Mark Kirk of Illinois released a web video showing his journey in learning how to walk again.
Thanking his doctors and supporters, Kirk said he hopes to soon "climb the 45 steps that my staff counted from the parking lot to the Senate front door" and "fight for the people of Illinois."
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The first-term senator details in the nearly three-minute video his intensive recovery program at the Rehabilitation Institute of Chicago, in which he's taking part in developing walking studies.
"They have some devious ways of making things more difficult," Kirk said. "Yesterday I was wearing a 10-pound weight. They described it as the weight of a baby on your ankle, which really does slow you down."
Last week, his office announced he was being released from the hospital for the first time since the end of January, when Kirk, 52, underwent successful surgery to relieve swelling around his brain stemming from the stroke.
"I want to thank everybody, especially for the patience they have given me to recover from a big stroke," Kirk said. "I can't wait to go back to work to vote to spend less, and borrow less and tax less to fix our economy."
Elected to the Senate in 2010, Kirk previously served as a U.S. House member for 10 years. He's best known for eventually winning President Barack Obama's Senate seat after Obama was elected president in 2008.
Kirk bested Democrat Alexi Giannoulias, the state treasurer who had strong support from Obama. The seat had been vacated by Democrat Roland Burris after he was embroiled in scandal surrounding his appointment by then-Illinois Gov. Rod Blagojevich to fill Obama's seat.