Adaptation to a standardized training program and changes in fitness in a large, heterogeneous population: the HERITAGE Family Study. - Skinner,J.S.; Wilmore,K.M.; Krasnoff,J.B.; Jaskolski,A.; Jaskolska,A.; Gagnon,J.; Province,M.A.; Leon,A.S.; Rao,D.C.; Wilmore,J.H.; Bouchard,C. (Med Sci Sports Exerc, 2000)