Aerobic Study
Cardiovascular - Cardiopulmonary

1. Orbiter Treadmills
2. Other Treadmill Brands
3. Impact Avoiders (IAs)
4. Rowers

The American Medical Association (AMA) has recognized findings that Researchers at Milwaukee's Medical College of Wisconsin reported in their product comparison study:

"Exercisers on treadmills burn about 700 calories per hour, while exercising "somewhat hard", versus only 500 calories per hour on stationary bikes. On rowers, stair steppers, and cross-country-ski simulators exercisers burn about 600 calories per hour."

Type of Exercise	Calories Burned Per Hour	% Difference Compared to Conventional Treadmill
Treadmills other than Orbiter	700	Highest Rated
Stair Steppers	600	(-15%)
Ski Simulators	600	(-15%)
Rowers	600	(-15%)
Stationary Bikes	500	(-29%)

1. At 3.0 - 3.5 mph walking speeds and 0.0% elevation, test subjects processed an Average of 26% more Oxygen V02 (ml/kg/min) while walking on an Orbiter than while walking on a conventional (Quinton) treadmill.
and
2. Subjects' heart rate was also monitored during these tests. These same test subjects' heart rate averaged about 10% higher on Orbiter than on the conventional (Quinton) treadmill.

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