DDPY Rebuild Chair Force is a unique program designed specifically for individuals who may have limited mobility due to age, injury, or some other condition. No matter what your limitations may be, Rebuild will meet you where you are at. DDPY Rebuild is a workout that is done completely sitting in a chair, with the purpose of helping individuals gain strength, flexibility, and most of all mobility. This is a good starting point if you struggle with balance or have trouble standing for long periods of time. Required: Yoga mat, water bottle, and towel. Heart rate monitor is highly recommended.