Surely, there were collectors of ballads before CHILD, but if you were seeking one of his equals in the multiple fields of Exercise Physiology you would find ERIK HOHWU CHRISTENSEN in the quartet.
Also, you may consider a past US Air Force physician, Dr. Kenneth H. Cooper, M.D., M.P.H., he published his first bestseller, Aerobics, in 1968, and introduced a new word and a new concept to America. Modern day, the Cooper Institute for Aerobics Research in Dallas, suggests fitness level is a much stronger indicator of health and longevity than weight.
You might want to talk to your friend and determine if it might be Kinesiology that she desires to explore.
Sincerely,
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