Orangetheory Fitness: The Plank Marc & Mandy Coaches Ian Smith and Stephanie Garneau from Orangetheory Fitness show how to do the plank. Related videos Improving Your Health With Naturopathic Medicine Wellness Fix: Underwater Exercise Equipment The Importance of Mental Health Helpful Tips for Dental Trips Orangetheory Fitness Tips: Lateral Raise Wellness Fix at Synapse Health