Step 1: This exercise works best without shoes, so slip them off if you can.
Step 2: Sit up straight in your chair.
Step 3: Lift both feet off the floor, bend your knees slightly, and bicycle in place.
Step 4: Bicycle for at least 2 minutes.
If you'd like more of a challenge, lift both knees higher.
Put together your own office fitness routine by reviewing the exercises in our Workplace Fitness Library.
Source: Good Health