I’ve worked with many individuals with sedentary lifestyles and chronic illnesses. It is very easy for them to become overwhelmed. Think simple and functional, with small goals (eg. walk to the end of the block, or walk for one minute). Balancing, getting out of a chair using core and glutes, sitting back in a chair without collapsing or falling back (functional squats), wall push-ups, range of motion, and basic stabilization tend to be good exercises. Side steps with an overhead clap to the beat of her favorite song might be a fun way to connect and get her moving. Clients don’t always have to go to a gym or find a 30+ minute slot. Balancing while brushing their teeth and chair squats during a commercial or their favorite tv show all work, and something is always better than nothing.
Also, beware of injuries and trying to progress too quickly. It’s always good to check their doctor or consult with a good physical therapist (with client’s permission) if there is a history of injuries. Most importantly, make it fun, be creative and be encouraging!