2. Gait: Loading Response

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just shoot me.

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17 Terms

1
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Loading Response limb support?

2x limb support

2
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What rocker occurs during Loading Response?

Heel rocker

3
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What phase is the contralateral limb in during Loading Response?

Pre-Swing

4
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What is the critical event during Loading Response?

Calcaneal eversion

5
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Loading Response

sagittal plane

GRFs

hip: anterior → ext.

knee: posterior → ext.

ankle: posterior → DF

<p>hip: anterior → ext.</p><p>knee: posterior → ext.</p><p>ankle: posterior → DF</p>
6
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What is the pelvic tilt in the sagittal plane during Loading Response?

Anterior pelvic tilt, 14°

trunk neutral

<p>Anterior pelvic tilt, 14°</p><p>trunk neutral</p>
7
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What is the hip position and moment chain at Loading Response (sagittal plane)?

25° flexion


GRF: anterior
EM: Hip flexion

IM: Hip extensors (hamstrings + glute max), CONCENTRIC

<p>25° flexion</p><p><br>GRF: anterior<br>EM: Hip flexion</p><p>IM: Hip extensors (hamstrings + glute max), <strong>CONCENTRIC</strong></p>
8
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What is the knee position and moment chain at Loading Response (sagittal plane)?

15° flexion


GRF: posterior

EM: Knee flexion

IM: Vasti (quads), ECCENTRIC to control flexion

<p>15° flexion</p><p><br>GRF: posterior</p><p>EM: Knee flexion</p><p>IM: Vasti (quads), <strong>ECCENTRIC</strong> to control flexion</p>
9
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What is the ankle position and moment chain at Loading Response (sagittal plane)?

5° PF


GRF: posterior

EM: PF

IM: DF (pretibials: Tib Ant., EDL, EHL, Fib Tertius), ECCENTRIC to control PF

<p>5° PF</p><p><br>GRF: posterior</p><p>EM: PF</p><p>IM: DF (pretibials: Tib Ant., EDL, EHL, Fib Tertius), <strong>ECCENTRIC</strong> to control PF</p>
10
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What happens to the MTP joints during Loading Response (sagittal plane)?

flexion → neutral

<p>flexion → neutral</p>
11
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Loading Response

Frontal plane

GRFs

hip: medial

knee: just medial

ankle: lateral

<p>hip: medial</p><p>knee: just medial</p><p>ankle: lateral</p>
12
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What is the frontal plane moment chain at the hip during Loading Response?

GRF: medial to hip

EM: Hip adduction

IM: Hip abductors, ECCENTRIC to minimize contralateral pelvic drop.

<p>GRF: medial to hip</p><p>EM: Hip adduction</p><p>IM: Hip abductors, <strong>ECCENTRIC</strong> to minimize contralateral pelvic drop.</p>
13
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What is the frontal plane moment at the knee during Loading Response?

GRF: just medial to knee

EM: varus <>

<p>GRF: just medial to knee</p><p>EM: varus &lt;&gt;</p>
14
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What is the frontal plane moment chain at the subtalar joint during Loading Response?

GRF: lateral to heel

EM: Subtalar eversion/pronation

IM: Tib Ant + Tib Post, ECCENTRIC

<p>GRF: lateral to heel</p><p>EM: Subtalar eversion/pronation</p><p>IM: Tib Ant + Tib Post, <strong>ECCENTRIC</strong></p>
15
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What is the pelvic rotation in the horizontal plane during Loading Response?

Forward rotation, 3–5° max

<p>Forward rotation, 3–5° max</p>
16
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What is the hip rotation and moment chain during Loading Response (horizontal plane)?

IR → ER ECCENTRICALLY via piriformis & glute max

<p>IR → ER <strong>ECCENTRICALLY</strong> via piriformis &amp; glute max</p>
17
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What is the knee rotation in the horizontal plane during Loading Response?

IR 5° max

<p>IR 5° max</p>

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