Many elliptical machines also can vary in resistance, making it more difficult to push along and challenging your muscles as ...

Elliptical trainers and treadmill machines provide a great indoor cardiovascular workout by getting your heart pumping and helping you burn calories. An elliptical mimics a smooth running motion ...

This skiing motion is also incredibly good for getting the heart rate beating. Some elliptical machines use a fan or air resistance, meaning the harder you work, the harder things get, while ...