The Shake Weight® does what it is designed to do.
Many fitness experts will tell you that strength gains are only found in full range-of-motion exercises. This has become the basis for many negative Shake Weight reviews. However, the Shake Weight for Men and the Shake Weight for Women are not products designed or advertised for strength gains. The Shake Weight is designed to burn calories, increase tone, and create muscle definition by reducing body fat in muscle areas. At these tasks, it does incredibly well.