It was given to me a few months ago asn has had this problem since we got it. When you walk or run on it, the walking belt jerks occasionally. What could this be? It doesn't do it when no one is on it, and speed doesn't seem to matter. I really need to get this repaired as I can't afford a new one and really can't afford a gym membership right now. My neighborhood also isn't the best for walking at the times I have available for exercise. I have walked on it a few times like it is, but it...

A: A gym membership would probably be cheaper. Repairs are really costly. Check to see what the manufacturer warranty is with proform or the company you got it from. If it's covered, get it fixed. I work at Sears repair and we do Proforms, but I dont know if thats your cheapest option. Usually I see Proforms with a 90 day full warranty. Good luck.

When it comes to exercise, most of us are looking for a shortcut, a way to lose weight and firm up without spending endless hours in the gym.

So a funky pair of sneakers that promises to tone the butt and calves sounds appealing. The same for weighted sleeves and stylish ankle weights, or a belt that creators say can shape abdominals, butt and arms.

But how well do such "exercise cheats" measure up to their claims that they'll do the work for you? We sent four products to four experts for their evaluation.

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THE PRODUCT: Banglz Wrist Weights, Ankle Weights, from fitnessUwear (starting at $24.95): The manufacturer says the fashionable, weighted bangles and anklets help the body burn more calories and build muscle. Wear them during everyday activities or for fitness training. The wrist weights help strengthen arms, shoulders, chest and core. The ankle weights work the legs, hips and glutes. Wrist weights come at 1/2 pound ($24.95) or 1 pound ($27.95); ankle weights at 1 pound ($27.95) or 2 pounds ($41.95).