If he does not choose to excercise, he is chosing to decline.
Boxing forces you to keep shifting your weight, which in turn is great for balance. It's hard exercising when you feel like this a lot of the time but it is really important.
Thank you for your suggestions. My husband does have a gait belt, and we use that to help him out of his chair. He would use it when the physical therapist was working with him, but won’t use it now for walking. He also has a walker, but prefers to use a cane. He’s not interested in strength building exercises. The PT suggested Rock Steady Boxing, too, but he’s has no interest. He’s recognizes that he’s having more difficulty, but he’s stubborn about what he will and won’t do. It’s sad and frustrating to see him like this.
Has he done physical therapy to work on strength and balance? Encouraging exercise to build strength and taking classes like Rock Steady Boxing, tai chi or yoga can make a difference.
Do you have a gait belt, or does he have a walker you can help him with?