"It's a bright spot for our nation's young kids, but the fight is very far from over," CDC Director Dr. Tom Frieden said at the time.
"While childhood obesity rates are beginning to fall, we still have a long way to go before we solve this problem once and for all," the first lady said Tuesday. "We can't slow down and we can't turn back now."
Let's Move! recommends children engage in physical activity for a total of 60 minutes every day, and adults should move for 30 minutes daily.
Show the White House how you move on Twitter, Facebook, Instagram and Vine using the hashtag #LetsMove.