THE MATRIX PRINCIPLE is a major breakthrough in weight training for everyone who wants to build a healthy and muscular physique without the use of harmful drugs.

Drawing on the most recent advances in exercise physiology, this book explains how and why muscle growth takes place, and why some forms of exercise are more effective than others for muscular development.

It goes to the heart of important questions such as: 

Is weight training beneficial to children and older adults?

What kind of diet best promotes muscle gain?

What is the effect of anabolic steroids? 

The book gives clear and comprehensive instructions on the most effective methods of aerobic, isometric and isotonic weight training and introduces the MATRIX SYSTEM -a complete set of workout routines for each part of the body.

Each 'matrix' or set of exercises is organised into stages to cater fortrainers at all levels. Amateur and professional sporting teams around the world are using the MATRIX SYSTEM with astonishing results as a safe alternative to drugs.

Contest-winning bodybuilders have achieved greater muscle gain through MATRIX training than with any conventional exercise method.And for exercisers who want to improve their general fitness and muscle tone, the detailed instructions and photographs will help you to follow the program at your own pace.