Patent ID: 11957954
Assignee: ALTERG, INC.
Field: Medical technology (Instruments)
Classification: CPC A | IPC A

Claim 16:
17. A method of calibrating a differential air pressure unweighting system for a user, comprising:
coupling a user to a chamber of the differential air pressure system;
increasing the pressure in the chamber to an initial unweighting condition;
increasing a speed of a moving belt of a treadmill in the system such that the user is walking within the chamber while the user is being unweighted by air pressure in the chamber;
obtaining electronic signals from a first load cell and a second load cell of the differential air pressure unweighting system for the user at the initial unweighting condition, the first load cell positioned on a right side of a strike plate under a moving portion of a treadmill within the chamber and the second load cell positioned on a left side of a strike plate under a moving portion of a treadmill within the chamber;
increasing the pressure in the chamber in successive increments to unweight the user to a plurality of unweighting levels;
obtaining electronic signals from the first load cell and the second load cell for the user at each successive unweighting increment level of the plurality of unweighting levels;
generating a user specific differential air pressure calibration curve for unweighting the user based on the electronic signals obtained at the initial unweighting condition and each of the successive unweighting increments; and
operating the differential air pressure system to unweight the user using the user specific differential air pressure calibration curve.