The Physiology of Strength, by Theodor Hettinger, M.D.
The Physiology of Strength contains all the results of over a decade and a half of isometric research conducted from 1946 to 1961 at the Max Planck Institute in Dortmund, Germany. This is the DEFINITIVE scientific validation of the training methods found in 7 Seconds to A Perfect Body. Featuring over 80 pages of scientific evidence and detailed explanations of the methods used this is an invaluable resource to the student of 7 Seconds to the Perfect Body!
Bonus to the "7 Seconds to A Perfect Body"
