@jime51 One other thing:

Newton, in his clinic, uses exercise machines that have computer controls that can be set to offer more resistance when the target muscle or group is lengthening, than when that muscle or group is contracting. When a muscle lengthens it is called eccentric movement, when it contracts the movement is called concentric.

I've heard a presentation by Dr. Stacy Kenfield, from UCSF, who studies exercise and prostate cancer, where she says Newton was the first to convince other exercise oncologists that patients who exercise emphasizing eccentric movements while on ADT could increase their muscle size as opposed to maintaining size or reducing the amount of wasting.

If no specialized machine is available, Newton suggests an approximation of their effect can be had if during any exercise, if the concentric part of the exercise takes x amount of time, the eccentric part is given 2x the time.