Have you found that music therapy unlocks certain memories and improves overall fitness?
Great question Lori. I got some good information out of this and I plan to research it some more. Guy Andrews with ExerciseEtc. has a lot of experience with aging population and exercise:
http://exerciseetc.com/faculty.html
He might be able to provide you with more research regarding your question.
I hope this helps.
Best,
Harris