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A: limite de proportionnalité, B: limite d’élasticité, C: point de rupture
schémas tirés de biomecanique
fonctionnelle Dufour, Pillu!
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Si les deux bouts de la tige sont solidarisés aux mâchoires, lors du serrage, le 1/3 moyen de
La tige s’incurve tandis que les deux 1/3 extrêmes restent rectilignes. Exemple le tibia qui
ne permet pas de mouvement dans le plan frontal.
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La notion de cocontraction se retrouve
dans la poutre composite.
En effet, il y a une double action
1- poutre composite entre os et muscle
2- effet étau entre le muscle agoniste et
son antagoniste, favorisant la
cicatrisation osseuse et correspondant
aux chaînes parallèles
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