My ASD daughter's special interests are writing and bands. Both sitting activities. She is home schooled so I have to provide PE for her. Unfortunately she quit soccer after 12 seasons. I have had a little bit of luck with bike riding with her. She will ride on flat trails and some neighborhood streets. But that so far is her only activity to get her off her butt.
What are you doing with your ASD kids to get them active? I could use some suggestions.