With the Eclipse® Elliptical Trainer, you can lose weight...strengthen your heart and lungs...firm and sculpt your buns and thighs. All in just 20 minutes a day! Studies prove elliptical trainers burn more calories than bikes...more calories than stair climbers... with a low impact workout that's easy on your body. Just like professional models, Eclipse® Elliptical Trainers feature a completely smooth, solid elliptical motion that is very low impact so it's easy on your body. And electronics so advanced they're able to match your workout to your heart rate for optimal fat burning.