摘要：The dynamic force exerted by the foot to the level floor in walking was analysed in the present study. A special dynamometer was devised for the purpose. Ten subjects were examined during several kinds of walking. Changes in the sagittal, transverse and vertical components of the foot force and the shift of its point of application during the stance phase are recorded along with the postural change of the subject taken with the 16mm cine-camera.From the results of the observation of the changing process of the force, it can be said that the human walk is a progression of the whole body which must be supported against the floor. The large force observed in early stage of the stance phase may be rather a supporting action of the body mainly by means of the heel; the large force observed in later stage may mean rather propulsive action by means of the ball and toe. Any way the body is always supported almost upright and sways little.We express our appreciation to Prof. Yoshiyasu NAKAO of the Somatofunctional Laboratory, Faculty of Fine Arts, Tokyo University of Arts, for his help to this experi-ment. We also wish to express our thanks to Mr. Shunsaku MITSUHASHI of the Depart-ment of Mechanical Engineering, Faculty of Engineering, University of Tokyo, for his kindness providing facilities for the experiment.
