Patent ID: 8840572

Claim:
An exercise apparatus comprising: a pressurizable chamber configured to receive a portion of a body of an individual and to apply positive pressure to the body portion during exercise; a treadmill inside the pressurizable chamber; a pressure source that can either be turned on or off and is unregulated during use to apply positive pressure to the body portion during exercise; a regulated exhaust valve; a pressure sensor connected to the pressurizable chamber for measuring the pressure within the pressurizable chamber and electronically communicating the measured pressure to a processor, the processor is configured to receive an input of the individual's weight at at least two different positive pressure values, generate a measured weight and positive pressure relationship for the individual, and to control the regulated exhaust valve to regulate the positive pressure in the chamber by referring to only the generated relationship and measured pressure electronically communicated from the pressure sensor without continuously measuring the individual's weight, the processor further configured to control a speed of the treadmill by comparing the measured pressure inside the chamber to a stored safety parameter.