Importance

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Abstract

A motion analysis system and apparatus incorporates markers which are secured at various joints of the subject's body as well as pressure sensitive shoes or insoles which are worn by the subject. The subject is caused to perform motion such as walking or running. While performing this motion, the subject is televised by means of two video cameras. The video signal from the cameras is stored by means of video recorders and then processed on a frame-to-frame basis to provide digitized data. The pressure sensitive insoles provide signals which are processed according to analog to digital conversion techniques whereby a display is also provided which indicates the pressure applied to the subject's foot while performing. The remaining data as supplied by the first and second video cameras and which is digitized is then further processed to present various displays showing the gait, the angular position of the various joints of the patient and various other information indicative of the particular walking characteristics of the subject. The data thus produced and processed by the system enables a practitioner to judge the persons's walking gait as compared to a normal user.

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First Claim