Why You Should Exercise If You're In A Wheelchair
You've heard that everyone should be exercising, but what if you have a disability? It's hard enough taking care of the basics if you're in a wheelchair or have other physical disabilities, much less exercise. However, exercise is even more important for people with disabilities. It keeps your body strength, gives you energy, improves stress and can help reduce fatigue. The key is to find the right kind of exercise for your situation.
Generally, wheelchair users can focus on resistance exercises to improve your upper body strength and help reduce your chances of injury. You should always talk to your doctor or physical therapist to get clearance and guidance for your best options.

Workout Resources:
Specialized Equipment
Working Your Upper Body
Wheelchair Sports
Keeping Your Body Flexible
Workout videos
Source: https://www.verywellfit.com/no-limits-exercising-with-a-disability-1229597