If you're asking the question, "Is this the ONLY way to get in shape?" when faced with the prospect of long, slow, distance workouts for building endurance and burning fat, the answer is a resounding NO! There are so many alternative ways to do endurance work, you could fill a book - and in fact, here it is.
This well-written, well-organized handbook is truly your A-to-Z guide to building a high level of conditioning and endurance. It includes: 1) a concise presentation of the physiology of training; 2) the general concepts you need to put together effective programs; 3) numerous exercises within 12 different modalities (e.g., agility, sandbag, grappling, bodyweight); and 4) myriad sample workouts and routines. 208 pp.