Interest in progressive resistance exercise has developed rapidly since Dr. Thomas DeLorme initiated studies concerning this type of exercise at the Gardiner Army General Hospital in Chicago during World War II. Drs. DeLorme and Watkins have now prepared an excellent general textbook describing in careful detail the technic and medical application of this particular type of exercise. As mentioned in Dr. Barr's foreword, the system of exercises described "has a sound physiologic basis and muscles subjected to this type of exercise can be shown to have increased power both to the satisfaction of the patient and the physician."
The book is divided into ten sections: (1) introduction, (2) physiology by Frances A. Hellebrandt, (3) principles, (4) technics, (5) fractures, (6) knees by Francis E. West, (7) hips, (8) neurological conditions, (9) medical conditions, and (10) adolescents by J. Roswell Gallagher.
A common error is to attempt to restore muscular power