Patent ID: 8535064

Claim:
An apparatus, comprising: a pressure vessel capable of being opened to receive a user and closed to create a hermetic seal; said pressure vessel including an on-board interface capable of enabling a user to control one or more functions of said pressure vessel, a pressure transducer capable of monitoring air pressure inside said pressure vessel, and a user sensor capable of measuring one or more parameters of a user's body condition, said user sensor being in electrical communication with said on-board interface; a blower capable of removing air from said pressure vessel; a proportioning valve capable of controlling the amount of air allowed to enter into said pressure vessel, said on-board interface configured to initiate a session of cyclic variations in altitude conditioning upon initiation by a user at a first time period, said session including a predetermined program configured to regulate cyclic variations of altitude within said pressure vessel, said on-board interface configured to cause a change to said predetermined program at a second time period based on a signal received from said user sensor; and a controller electrically coupled to the pressure vessel, the controller configured to classify the user into one of a predetermined number of body type categories, the controller configured to select the program based on the classification.