Oh definitely with your upper body and arms. They can do a lot of stuff we can't even do...I have a friend with her arm amputated and I swear to god she can do more than me!!! I've had to get her to help me before and she'd laugh at me so hard. To make it clear she was amputated just below her elbow.
also, just because you're in a wheelchair doesn't mean you don't have use of your legs. one of my students uses his legs a lot. he just doesn't have the strength to stand or walk. another student can walk for short distances.
-Sure thing bro
[An hour later]
-I did not picture this