The Elliptical Machine Double is a person-powered exercise station which delivers cardiovascular benefits through elliptical motion.
The exercise completely avoids the impact stress runners often experience on feet, knees, hips and lower back. Many people cannot tolerate the jarring motion of jogging.
The Elliptical Machine Double improves cardiovascular fitness. Exercise levels can be of 5 to 15 minutes duration. Experiment with various self powered speeds and different levels of intensity.