Sounds like the work your doing is in educational research; but the research it's self is in kinesiology. Because moderit to vigorous exercise 3 times a week for 30 min to an hour can definitely improve focus, self-esteem, and a few more things I'm not sure I can list today. But any sport or martial practice could help with that; aikido isn't really special in that case. Unless there's something i don't know that you do?