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Sur la géometrie musculo-squelettique du triceps brachii

Application à la détermination dynamique de sa compliance

Musculo-squeletic geometry of triceps brachii

Application to dynamic determination of its compliance

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Abstract

On the basis of Franke's data about the anatomy of the triceps brachii, the authors set up:

  1. 1.

    An equation to calculate the lever arm of the triceps brachii at different values of the elbow angle (Θ) as measured from the fully extended elbow. Providing that the external torque of extension is known, it becomes possible to calculate the force developed by the triceps.

  2. 2.

    An equation to calculate the length variation of the triceps.

  3. 3.

    An application of the equation is reported. It concerns the determination of the series-compliance of the triceps brachii by means of a quick-release method.

Résumé

A partir des données anatomiques de Franke (1920) sur le triceps brachii, les auteurs proposent:

  1. 1.

    Une équation de calcul du bras de levier du triceps en fonction de l'angle (Θ) formé par la direction du bras et celle de l'avant-bras. Connaissant le couple et le bras de levier, il est aisé de connaître la force appliquée à l'olécrâne par le triceps.

  2. 2.

    Une équation de calcul de la variation de longeur du triceps en fonction de l'angle (Θ).

  3. 3.

    Une application: la détermination de la variation de la compliance du triceps en fonction de la force effectuée au cours d'une expérience de ≪quick-release≫.

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Authors and Affiliations

  1. Laboratoire de Physiologie Générale, Université des Sciences et des Techniques de Lille, Villeneuve d'Ascq

    J. C. Cnockaert &  E. Pertuzon

  2. Laboratoire de Physiologie Neuromusculaire, Université des Sciences et Techniques de Lille, B.P. 36, F-59650, Villeneuve d'Ascq, France

    E. Pertuzon

Authors
  1. J. C. Cnockaert
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  2. E. Pertuzon
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Cnockaert, J.C., Pertuzon, E. Sur la géometrie musculo-squelettique du triceps brachii. Europ. J. Appl. Physiol. 32, 149–158 (1974). https://doi.org/10.1007/BF00421573

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  • DOI: https://doi.org/10.1007/BF00421573

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