Recently I started volunteering to teach tai chi (24 posture) and basic chi kung to a elder church group that my secretary belongs to. So far so good. I've found that I have to grossly modify the form to account for the varying physical capabilities of the members. Some of them can only move their arms while sitting in chairs. Anyone else have experience in this that you can share? I'm looking for ideas to help teach them. My goal is to just get them breathing and moving in a non-impact way to improve over-all health.