This new invention actually borrows a lot of old theories. A while back there was a fitness tool that you had to move back and fourth while performing dynamic exercises. Here is what the web site claims this product does….
Shake Weight™ – Get Lean, Sculpted Arms & Shoulders
- Based on a new workout technology called Dynamic Inertia, which ignites the muscles in your arms, shoulders, and chest
- Works out your arms, shoulders and chest in just 6 minutes a day
- You will feel it instantly
An Independent Scientific Study shows that the Shake Weight™ causes over 300% more EMG activity than the traditional dumbbells of the same weight. This is a result of the unique motion of the exercise, isometric contraction of the entire upper body required during use of the Shake Weight™ and the rapid pace of the muscle fatigue caused by one unique movement.
I think this is one of those inventions that you actually have to try to believe it! Maybe there is a store somewhere out there that lets you test it out????