Here is a list of sample exercises from the Costco magazine, which means chair yoga is hitting the mainstream: http://www.costcoconnection.com/connection/201606?pg=44#pg44
Chair yoga is a gentle form of yoga that is practiced sitting on a chair, or standing using a chair for support. The poses, called Asanas, are often adaptations of standard Hatha yoga poses.
Chair yoga is especially suitable for busy people stuck at their desks at work, or those unable to participate in a traditional yoga class due to the effects of aging or disabilities.
Chair Yoga is one of the gentlest forms of yoga available. Complicated maneuvers and complex movements are typically not included.
Chair Yoga - Wikipedia, the free encyclopedia http://buff.ly/2bXErdD