Home exercise equipment – How useful?

RIDERS, walkers, treadmills, abdominal exercisers … fitness gadgets that allow you to exercise at your convenience and in the privacy of your own home are the "in" thing now.  Infomercials and advertisements convince you that the pricey gizmos you see are the ultimate item to own.

What is the whole truth about home exercise machines? For the puzzled and the perplexed, we compiled several interesting facts about some popular exercise equipment from Consumer Reports and Nutrition Action Healthletter as a guide.