Hip Critical Events and Muscle Actions Flashcards

1
Q

Critical Event and Objectives: Loading Response

A

Maintains 20 Degrees of Flexion

Objective: Weight bearing Stability (The hip maintains the stability while the knee and ankle are moving).

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2
Q

Critical Event and Objectives: Mid-Stance

A

20 Degrees of Flexion - 0 Neutral

Objective: Progression of the COM over the BOS and Single leg stance stability.

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3
Q

Critical Event and Objectives: Terminal Stance

A

0 Neutral - 20 Degrees of Extension

Objective: Progression of the COM beyond the BOS and allows for normal step/stride length.

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4
Q

Critical Event and Objectives: Pre-Swing

A

20 Degrees of Extension - 0 Neutral

Objective: Initiates Limb Advancement and passive knee flexion.

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5
Q

Critical Event and Objectives: Initial Swing

A

0 Neutral - 10 Degrees of Flexion

Objective: Limb Advancement

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6
Q

Critical Event and Objectives: Mid- Swing

A

10 Degrees - 20 Degrees of Flexion

Objective: Continued Limb Advancement

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7
Q

Critical Event and Objectives: Terminal Swing

A

Maintain 20 Degrees of Flexion

Objective: Completes Limb Advancement and ensure normal step/stride length and heel contact.

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8
Q

Muscle Actions: LR

A

Hip Flexion Moment

Isometric Hip Extensors
Glute Max
Hamstrings
Adductor Mag

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9
Q

Muscle Actions: Early MS

A

Reducing Hip Flexion Moment

Concentric Hip Extensors

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10
Q

Muscle Actions: Late MS

A

Neutral Moment

No Muscle Action

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11
Q

Muscle Actions: Terminal Stance

A

Hip Extension moment

Resisted Passively by the anterior hip capsule and tension of anterior structures.

No Hip Flexor Activity

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12
Q

Muscle Actions: Pre-Swing

A

Reducing Hip Extension Moment

Concentric Hip Flexors

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13
Q

Muscle Actions: Initial Swing

A

Hip Extension Moment Gravity Driven

Concentric Hip Flexors

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14
Q

Muscle Actions: Mid-Swing

A

Hip Extension Moment Gravity Driven

Concentric Hip Flexors

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15
Q

Muscle Actions: Terminal Swing

A

Hip Extension Moment Gravity Driven

Isometric hip Extensors
Glute Max
Adductor Mag

Eccentric Hamstrings

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