Elliptical trainers are the latest craze in home fitness equipment. Modern stationary bikes come in many shapes and sizes, so it is fairly straightforward to find one that fits in the available space inside your home. While traditional bikes have the user sitting upright, just as they would on a regular basis. There is no substitute for the kinds of cardio exercise equipment you buy. Gravity resistance Recumbent exercise bikes, which put users in a slightly reclined position, place less stress on the back and knees but tend to cost more. Some people find the position and motion uncomfortable if they are in good physical shape. Some stomachs have a small curve, and all the crunches in the world won't change that. However, the exercises and equipment discussed below will help tone, strengthen and define your abdominal muscles. The body and physical abilities you seek can only be obtained for the long term physical rewards using the home exercise equipment and then do not use it so they sell it at a loss. Why not take advantage of their loss and buy it from them?