DYNAMIC STRENGTH DVD Harry Wong Isometrics & Body Weight Exercises for Maximum Strength. INCREASE YOUR STRENGTH WITHOUT SACRIFICING FLEXIBILITY! Dynamic Strength could best be described as "Flowing isometrics," where the practitioner's own body provides the resistance. Unlike isometrics, the resistance exercises of Dynamic Strength are performed in motion, which enhances flexibility and increase the blood flow. Best of all, absolutely no equipment is needed! Harry teaches you how to continually improve your strength and physique. His students have shown phenomenal results in an amazingly short time without ever touching a weight!