chair yoga tutorial, seated side-bend. René De los Santos Yoga .Disclaimer. Please consult your physician before taking on any new fitness regime. In participating in this exercise program, you agree that you are doing so at your own risk. You should understand that when participating in any exercise program, there is the possibility of physical injury. Please be mindful and listen to your body. In voluntarily participating in these exercises, you assume all risk of injury to yourself, and agree to release and discharge René De los Santos from any and all claims or causes of action, known or unknown, arising out of René De los Santos' negligence.