Home/Authors/Dr. Karl KnopfAuthorDr. Karl KnopfBooks, tags, and list pathways readers use to discover this author.Common TagsStrength TrainingPilatesInterval Training (hiit)HealthSportsWomenBooksMake the Pool Your GymDr. Karl Knopf, Karl KnopfWeights for 50+Dr. Karl Knopf, Karl KnopfThe Strength Training Bible for SeniorsKarl Knopf, Dr. Karl KnopfBest Lists Featuring Dr. Karl KnopfStrength Training BooksInterval Training (incl. Hiit) BooksReaders Also LikedKarl KnopfNsca National Strength & Conditioning AssociationMark LaurenJoshua Clark& 1 MoreMichael D'orso