Ever wonder if the Shake Weight is actually, like, effective? You’re not the only one. As a celebrity trainer, I get asked all the time for my opinion about fitness gadgets that are advertised on TV. (The inquiries have only increased now that I have my own product line.) So this week, I thought I’d take five workout devices you’ve been pitched and tell you what I really think of them. The truth might surprise you... once you get over the fact that I didn’t have room for the Thighmaster. —Jay Cardiello
