Knee Critical Events And Muscle Actions Flashcards by Michael Yoshinaga | Brainscape

Q

CE and Objective: Loading Response

A

0 - 20 degrees of Flexion

Objective Shock Absorption

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Q

CE and Objective: Mid-Stance

A

20 degrees of Flexion - 0 Neutral

Objective Progress COM over BOS

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Q

CE and Objective: Terminal Stance

A

Remains at 0 Neutral

Objective: To progress the COM beyond the BOS

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Q

CE and Objective for Pre-Swing:

A

0 - 40 degrees of Flexion

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Q

CE and Objective: Initial Swing

A

40 - 60 degrees of Flexion

20 Degree arc of motion

Objective: Foot Clearance

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Q

CE and Objective: Mid-Swing

A

60 - 30 degrees of flexion

30 Degree arc of motion

Objective: Limb Advancement

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Q

CE and Objective: Terminal Swing

A

30 degrees Flexion - 0 Neutral

Objective: Limb advancement and ensures normal stride length heel contact.

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Q

Muscle Action: Loading Response

A

Knee Flexion Moment

Eccentric Knee Extensors (Vasti)

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Q

Muscle Action: Mid-Stance

A

Knee Flexion Moment to Neutral

Concentric Knee Extensors

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Q

Muscle Action: Terminal Stance

A

Neutral Moment (No Moment)

No Muscle Action

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Q

Muscle Action: Pre-Swing

A

Knee Flexion Moment (small)

No Muscle Action Because Knee Flexion is Passive

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Q

Muscle Action: Initial Swing

A

Knee Extension Moment Gravity Driven

Concentric Biceps Femoris Short Head

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Q

Muscle Action: Mid-Swing

A

Knee Extension Moment Gravity Driven

No Muscle Action

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Q

Muscle Action: Terminal Swing

A

Flexion Moment Gravity Driven

Concentric Knee Extensors

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