[A graphic study of levers in the human body].
A graphical method is proposed which permits one to determine by a simple drawing procedure for any lever in the human body the intensity of the muscular force and of the force acting on the fulcrum (i.e. on the joint) and the direction of this latter. The method is compared with the conventional one, in which muscular force is first determined by a calculation in which the geometrical lever arms are measured, and then fulcrum force is obtained by means of a vector construction. The new graphic method permits one to simultaneously obtain the intensity and the direction of the forces acting on the lever, without measuring or computing torque values.
Basso
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Università degli Studi di Torino, Dipartimento di Anatomia e Fisiologia Umona.
Soardo
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GP
D001696:Biomechanical Phenomena; D006801:Humans; D007596:Joints / Q000502:physiology*; D008433:Mathematics; D008722:Methods; D009132:Muscles / Q000502:physiology*; D012399:Rotation
Studio grafico delle leve nel corpo umano.