While taking care of my Father for the last 5 years of his life, he had miserable episodes. He was house ridden for that time, so exercise was minimal compared to normal life activities. I got him a motion macine for his legs off of amazon. "Under Desk Elliptical Machine, Electric Elliptical Leg Exerciser for Seniors with 12 Adjustable, Portable Quiet Elliptical Exercise Machine, Seated Pedal Exerciser with Remote Control"

It was not the cure-all, but it made a huge difference to keep his legs in motion for 1/2 to 1 hour before bed. If he just put his feet on it and went through the motion, it did little. But when he put his feet on it correctly and used it right, it really helped.

https://www.amazon.com/Putnen-Elliptical-Electric-Exerciser-Adjustable/dp/B0DF2WS15J/ref=sr_1_1_sspa?crid=12WH6LDQIOMEF&dib=eyJ2IjoiMSJ9.Wri036UmyC6IwZjD5EUAgbpxZrNeoGAzey-HpWKBPDzd7a7QE-WdJDVLLrg1VNKXTBwKfTZfIqPd4S0xxNo-9v96R9DnIs3l9Q8G4Kl-kGzeY_ePeCv-M6NgS60hVhZsX6s2fsVToSiwfXNhYIq4GH92t56dNRfW6WujIvKjdHdnanYsbmMs4XfshxLZKZnCKGJPATveqyUUGZu6vZq_R_5YSz3xYjO-ldnhm7X0AKg.VhuJx1iHL8pboXX5gnYUlRgGWGPzIAb-PSEwQOlF_Mw&dib_tag=se&keywords=leg%2Bexercise%2Bmachine&qid=1770829174&sprefix=leg%2Bexercise%2Caps%2C198&sr=8-1-spons&sp_csd=d2lkZ2V0TmFtZT1zcF9hdGY&th=1