CHICAGO (WLS) -- One step at a time thousands made strides at Willis Tower to support the Shirley Ryan Ability Lab.

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Sunday marked the 17th Skyrise Chicago, an endurance event challenging participants to climb up more than 100 flights.

Climbing to the Willis Tower Skydeck, a total of 2,149 stairs.

"I was diagnosed with Parkinson's 13 years ago and I was determined to find ways to combat symptoms of Parkinson's, so I looked at one of the finest hospitals in the area. Of course, it's Shirley Ryan Ability Lab," Marty Maibuecher, a patient of Shirley Ryan Ability Lab.

Proceeds garnered from Skyrise Chicago benefits the nonprofit continue its life-changing mission to advance ability for more than 50,000 adults and children globally ea

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