There is an article detailing the negative results of hospital patients not walking during their time in the hospital and how quickly their muscles weaken. Either at home of in a nursing facility, movement every day is critical maintaining the well being of your loved one. Creating meaningful activity that uses major muscle groups in the hands/arms/legs is key. This can be as simple as walking outside to see flowers or trees, or a garden. Inside it can be as simple as walking the hallways watering plants.
https://www.washingtonpost.com/health/overzealous-in-preventing-falls-hospitals-are-producing-an-epidemic-of-immobility-in-elderly-patients/2019/10/11/d1894374-d8ab-11e9-a688-303693fb4b0b_story.html