Step 1: Sit up straight and put your feet flat on the floor.
Step 2: Fold your arms and place them in your lap.
Step 3: Breathe in deeply through your nose",crunching" your upper and lower abs and pushing your lower back against the chair.
Step 4: Hold for the count of 3, then relax as you breathe out through your mouth.
Step 5: Do 25 reps.
Put together your own office fitness routine by reviewing the exercises in our Workplace Fitness Library.