03/15/2012 11:07 am ET Updated Mar 15, 2012

Katie Couric Advocates Exercise, Shows Off Physique (PHOTOS)

Katie Couric is dedicated to fitness and her body shows it, according to recent pictures that the television personality put on Facebook.

Couric has long been an advocate for healthy living. Last week, she posted a study about the dangers of inactivity to her Facebook wall. "I'm trying to exercise more, you should too!!" Couric urged.

And is she ever. This Sunday, Couric will be hosting a spinning event at New York's Flywheel spinning studio to benefit colorectal cancer research. She's also been experimenting with Pilates, dance and an exercise bootcamp program — and has been sharing photos of her activities with her social media followers.

She even posted a video of herself doing Zumba, writing, "Friday morning humiliation! Hopefully I get better!!"

In February, she and Hoda Kotb participated in Spin For Sight for Usher Syndrome Type 3, which causes deafness and blindness.