With Coach Collins' 3-Stage Dynamic Dumbbell Training System(TM) you combine traditional strength training methods with more functional and dynamic movement patterns used in sport for achieving the ultimate athletic body. Every piece of exercise equipment in the gym serves a purpose, but none more so than the dumbbell, commonly referred to as free weights or hand weights - held in either one hand or as a pair in both hands whilst performing an exercise.With the introduction of Dynamic Dumbbell Training and the 3-Stage Dumbbell Training System(TM), the Body Coach(TM) takes you one step further by providing you with an additional series of 'Functional Fitness' and 'Sports Specific' movement patterns using dumbbells aimed at improving everyday lifestyle and athletic movement patterns.