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Tout ce qu'il te faut

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Tout (Tout)

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Biomécanique 100 m et marathon


Vitesse= amplitude( mètres par pas) *fréquence (pas par
seconde)
Fréquence conseillée pour ne pas se blesser : 3 pas par seconde
Plus l’amplitude est faible, plus les forces sont importantes
Cycle avant : sprinteur
Cycle arrière : coureur de fond
Impulsion= Force*temps
Puissance= Force*Vitesse




Composante verticale :
Le pic passif= choc dès que le pied touche le sol
Le pic actif= l’accélération de notre corps permet de générer
cette force
La pente= le taux d’augmentation de la force, plus le choc est
violent, plus la pente est importante


Composante antéro-postérieure :
Pic freinateur
Pic propulsif
La force que l’on génère nous freine avant de nous propulser


Les 2 composantes :
L’impulsion (surface sous la courbe)+(surface au-dessus de la
courbe)

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Uploaded on
January 6, 2026
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Written in
2025/2026
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Mathis
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