3. Bioméca : CINEMATIQUE Flashcards

1
Q

Pour le mouvement
- 3 PLANS
- 3 AXES

A
  • Frontal, Sagittal, Horizontal
  • Transversal, Sagittal, Vertical
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2
Q

Pour les 3 axes du corps, donner leur direction

A
  • Transversal : MEDIO-LATERAL
  • Sagittal : ANTERO-POST
  • Vertical : HAUT-BAS
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3
Q

Donner l’axe et le mvmt pour :
1- Plan Sagittal
2- Plan Frontal
3- Plan Horizontal

A

1- Axe Transv / Flexion-Extension

2- Axe Sagittal / Addu-Abdu (on éloigne de l’axe médial)

3- Axe Vertical / Rotation med-lat

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4
Q

3 classes de mouvement

A

Translation
(les parties se déplacent ensemble)

Rotation
(tourne autour d’1 axe)

Oscillation
(va et vient autour d’1position)

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5
Q

Vitesse moyenne calcul :

A

V(moy) = Δx / Δt

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6
Q

Vitesse instantanée calcul :

A

V = dx / dt
(dérivée de x sur t)

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7
Q

Accélération moyenne calcul :

A

a(moy) = ΔV / Δt

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8
Q

Accélération instantanée

A

a = dV / dt
(dérivée de V instant sur t)

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9
Q

Vitesse dans un mvmt uniforme :

A

V = V(moy) = Δx / Δt

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10
Q

Equations caractéristiques d’un mouvement uniforme :
- a =
- V =
- x =

A

a = 0

V = Δx / Δt = cste

x = V.t + x(0)

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11
Q

Equations caractéristiques d’un mouvement uniforme VARIÉ :
- a =
- V =
- x =

A

a = ΔV / Δt = cste

V = a.t + V(0)

x = 1/2.a.t^2 + V(0).t + x(0)

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12
Q

Chute libre :
- V =
- x =
- a =

A

V = g.t + V(0)

x = 1/2.g.t^2 + V(0).t + x(0)

a = g

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13
Q

Mvmt Horizontal :
- V =
- x =
- a =

A

V = V(0) = cste

x = V.t + x(0)

a = 0

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14
Q

Saut :
- V =
- x =
- a =

A

V(début) = V (fin) = 1/2.g.t

X(max) = 1/8.g.t^2

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