Brainscape's Knowledge GenomeTM


Top Flashcards (Certified)
All Flashcards

USC PT Gait Analysis > 4.0 Foot and Ankle Functions During Gait > Flashcards

4.0 Foot and Ankle Functions During Gait Flashcards

(42 cards)

Start Studying
1
Q

What are the 3 objectives of Loading Response?

A
  1. Initiate forward progression
  2. Shock Absorption
  3. Weight Bearing Stability
How well did you know this?
1
Not at all
2
3
4
5
Perfectly
2
Q

During Loading response of the gait cycle, what are the 3 major kinematics occurring?

A

0-5° Plantar Flexion

Part of Heel Rocker Mechanism

Facilitates the objective of Forward Progression

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
3
Q

What are the important kinematics of Initial Contact at the ankle?

A
  1. Neutral Ankle

2. Facilitates Heel Rocker

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
4
Q

During mid-stance, the ankle moves from ___° to ___°

A

5° of Plantar Flexion
to
5° of Dorsi Flexion

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
5
Q

What is/are the objective of Mid-stance?

A
  1. Facilitates the objective of progression of COM over the base of support
  2. Single Limb Stance Stability
How well did you know this?
1
Not at all
2
3
4
5
Perfectly
6
Q

What is the objective of Terminal stance?

A

Facilitate the objective of progression of COM BEYOND the BOS

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
7
Q

What is happening about the ankle during Terminal Stance?

A

5° of Dorsiflexion
to
10° of Dorsiflexion

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
8
Q

What muscles are active during loading response affecting the ankle and the type of contraction occurring?

A

Loading Response

  • Anterior Leg Muscles
  • Tibialis Anterior
  • Eccentric Plantar Flexion
How well did you know this?
1
Not at all
2
3
4
5
Perfectly
9
Q

What muscle(s) is/are active during Mid Stance that affect the ankle?

A

Mid-stance

  • Posterior Leg Muscles
  • Tibialis Posterior, Gastroc, Soleus
  • Eccentric Dorsiflexion
How well did you know this?
1
Not at all
2
3
4
5
Perfectly
10
Q

What muscles are active during terminal stance that affect the ankle?

A

Terminal stance

  • Posterior Leg Muscles
  • Gastroc, Soleus, Tibialis Posterior
  • Eccentric Dorsiflexion
How well did you know this?
1
Not at all
2
3
4
5
Perfectly
11
Q

What is the objective of Pre-swing?

A

-Initiate Limb Advancement

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
12
Q

What is happening about the ankle during Pre-swing?

A

10° of Dorsiflexion
to
20° of Plantarflexion

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
13
Q

What is happening about the ankle during Initial Swing?

A

20° of Plantar Flexion
to
5° of Plantar Flexion

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
14
Q

What is the objective(s) of Initial Swing?

A
  1. Limb Advancement

2. Foot Clearance

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
15
Q

What is happening about the ankle during Mid-swing?

A

5° of Plantar Flexion
to
0° of Plantar Flexion

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
16
Q

What are the objectives of Mid-swing?

A
  1. Continued Limb Advancement

2. Continued Foot Clearance

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
17
Q

What is happening about the ankle during Terminal Swing?

Study These Flashcards
A

Stays Neutral 0°

18
Q

What are the objectives of Terminal Swing?

Study These Flashcards
A
  1. Complete Limb Advancement

2. Prepare Limb for Stance

19
Q

What are the frontal plane kinematic about the ankle during Initial Contact?

Study These Flashcards
A

Foot:

-Supination 3°-5°

20
Q

What are the Frontal Plane kinematics about the ankle during Loading Response?

Study These Flashcards
A

Foot

  • Pronation 4°-6°
  • Rear Foot Eversion
21
Q

What are the frontal plane kinematics about the ankle during Midstance-Terminal Stance?

Study These Flashcards
A

Foot:

-Pronation to Neutral

22
Q

What are the objectives of Frontal Plane motion about the Foot?

Study These Flashcards
A
  1. Pronation in Loading Response/Mid Stance

2. Supination in Mid Stance/Terminal Stance

23
Q

What are the objectives during Pronation in Loading response/Mid stance?

Study These Flashcards
A
  1. Shock Absorption

2. Stance Stability

24
Q

How does pronation about the foot during loading response/Mid stance facilitate shock absorption?

Study These Flashcards
A

Pronation results in the “Unlocking” of the mid tarsal joints turning the foot into a “Mobile Adaptor”

25
How does supination in Midstance/Terminal Stance facilitate the progression of the COM beyond the BOS (Forefoot Rocker)?
Supination results int he "Locking" of midtarsal joints, turning the foot into a "Rigid Lever"
26
Foot Pronation facilitates what about the tibia?
Foot Pronation => Tibia Internal Rotation
27
During loading response? Where is the Ground reaction force vector relative to the Foot/leg?
Behind them
28
What type of moment does it create when the ground reaction force is behind the foot and ankle?
Plantar Flexion Moment
29
What muscles are active during a plantar flexion moment?
Dorsiflexors (Eccentric) - Tibialis Anterir - Extensor Hallicus Longus - Extensor Digitorum
30
During Midstance, what type of moment is created by the ground reaction force?
Dorsiflexion moment?
31
During a dorsiflexion moment? What is happening in regards to the muscles of the leg?
Dorsiflexion Moment = Plantar Flexors Active Plantarflexors (Eccentric) - Gastrocnemius - Soleus
32
What type of moment is happening about the foot/ankle during terminal stance?
Increasing Dorsiflexion moment
33
In regards to Kinematics and muscle control, what is happening during pre-swing about the foot/ankle?
1. Reducing Dorsiflexion Moment 2. Reducing Calf Demand (Concentric) - NO PUSH OFF!!!
34
What type of moment is created during initial swing about the foot/ankle?
Plantar Flexion Moment: Driven by Gravity
35
What muscles are active during a Plantar Flexion Moment?
Dorsiflexors (Concentric) - Tibialis Anterior - Extensor Hallicus Longus - Extensor Digitorum
36
For Initial Swing, Mid Swing, and Terminal Swing, What is the Moment created at the Ankle, and what type of muscle contraction is occuring?
Plantar Flexion Moment: due to Gravity Dorsiflexion (concentric) - Tibialis Anterior - Extensor Hallucis Longus - Extensor Digitorum Terminal Swing is only different in that the Dorsiflexors are "ISOMETRIC"
37
During Loading response, what happens about the foot and how does that affect the tibia?
Foot Pronates/Everts Tibia Internally rotates
38
The foot pronation motion is controlled by muscles that _______ the foot.
Invert
39
What are the inversion muscles and what type of contraction is occuring?
Dynamic Control of Foot Pronation During Loading Response ``` -Eccentric Contraction ·Tibialis Posterior ·Tibialis Anterior ·Flexor Hallicus Longus ·Flexor Digitorum Longus ```
40
Pronation to Supination in Mid Stance to Terminal stance is necessary for adequate _______ rocker in terminal stance.
Forefoot Rocker
41
For the foot go from Pronation to Supination in Mid stance to Terminal Stance, this requires a _____________ muscle action of the inverters.
Concentric - Tibialis Posterior - Flexor Hallicus Longus - Flexor digitorum Longus NO TIBIALIS ANTERIOR
42
During Initial contact of the Gait Cycle, what is happening at the ankle?
- Neutral Position | - Facilitates Heel Rocker

USC PT Gait Analysis (11 decks)

Brainscape helps you reach your goals faster, through stronger study habits.
© 2025 Bold Learning Solutions. Terms and Conditions