Step 1: Sit in a chair and take a deep breath in.
Step 2: Tighten the abdominal muscles, bringing them in toward your spine.
Step 3: Hold for 5-10 seconds.
Step 4: Release the muscles as you exhale.
Step 5: Repeat for 12-15 reps.
Put together your own office fitness routine by reviewing the exercises in our Workplace Fitness Library.