Drewitgolf,
Not sure you can have access to the Research, Science there's tons of information on golf biomecahnics on regarding physics.
Human motion (biomechanics) is based on physics.
Homer speaks about this topic on his tapes he recorded, there's 120 hours worth and i'm not sure you can get uour hand on this either very few people have copies.
I have spent many hundreds of hours listening to Mr. Kelley's work and I don't ever recall hearing him say that.