New procedure for evaluation of normal and abnormal gait.

In this paper a new procedure is presented that permits a quantitative clinical evaluation of an important aspect of human locomotion. It involves a spatio-temporal representation of the evolution of the group reaction vector (sagittal plane) for a single hind limb during the stance phase of a step. This representation is provided directly on line by use of a computer. Some preliminary results are presented for normal subjects and for patients with a variety of motor disorders.