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K&B II > Gait Cycle > Flashcards

Gait Cycle Flashcards

1
Q

What are the two phases in the gait cycle?

A
  1. Swing Phase (40%)

2. Stance Phase (60%)

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2
Q

What are the 7 periods in the gait cycle?

A
  1. Loading Response
  2. Mid-Stance
  3. Terminal Stance
  4. Pre-swing
  5. Initial Swing
  6. Mid Swing
  7. Terminal Swing
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3
Q

What are the 7 events in the gait cycle?

A
  1. Initial Contact
  2. Opposite Toe Off
  3. Heal Rise
  4. Opposite Initial Contact
  5. Toe off
  6. Feet Adjacent
  7. Tibia Vertical
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4
Q

What does Loading Response (period) begin and end with?

A

IC–> Opposite Toe Off

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5
Q

What occurs during Loading Response?

A
  • Foot lowers to the ground
  • Weight is rapidly transferred onto the outstretched limb
  • 1st period of “double-limb support”
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6
Q

What does Mid Stance (period) begin and end with?

A

Opposite Toe off –> heel rise

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7
Q

What occurs during Mid Stance?

A
  • Foot stays flat
  • Opposite leg swings through
  • The body progresses over a single, stable limb
  • Single limb support
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8
Q

What does Terminal Stance (period) begin and end with?

A

Heel rise–> Opposite IC

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9
Q

What occurs during Terminal Stance?

A
  • Heel of the stance limb lifts from surface
  • Body advances ahead of stance limb and weigh is transferred to the forefoot
  • Final portion of single leg stance
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10
Q

What does Pre-Swing (period) begin and end with?

A

Opposite IC–> Toe Off

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11
Q

What occurs during Pre-Swing?

A
  • “Push-off” phase
  • Rapid unloading of the stance leg as weight is transferred to contralateral limb
  • 2nd DLS phase
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12
Q

What does Initial Swing (period) begin and end with?

A

Toe off–> Feet Adjacent

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13
Q

What occurs during Initial Swing?

A
  • Thigh begins to advance as foot comes up off the floor

- Swinging limb passes the stance phase leg and the two feet are side by side

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14
Q

What does Mid -Swing (period) begin and end with?

A

Feet Adjacent–> Tibia Vertical

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15
Q

What occurs during Mid Swing?

A
  • Thigh continues to advance as knee begins to extend

- Foot clears the ground

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16
Q

What does Terminal Swing (period) begin and end with?

A

Tibia Vertical–> Initial Contact

17
Q

What occurs during Terminal Swing?

A
  • Knee extends

- Limb prepares to contact the ground for IC

18
Q

What are the 3 functional tasks that occur during the gait cycle?

A
  1. Weight Acceptance
  2. Single Limb Support
  3. Swing Limb Advancement
19
Q

Which functional tasks occur during the stance phase?

A
  1. Weight Acceptance

2. Single Limb Support

20
Q

Which functional tasks occur during the swing phase?

A

Limb Advancement

21
Q

What are the critical events that occur during weight acceptance?

A
  • Weight rapidly loaded onto outstretched limb
  • Hip stability
  • Controlled knee flexion for shock absorption
  • Controlled ankle PF
  • Both feet are in contact with the floor
22
Q

What critical events occur during single limb support?

A
  • Body progresses over a single-stable limb
  • Weight transfers over metatarsal heads and heel comes off the ground
  • Controlled ankle DF with heel rise
  • Trailing Limb posture
23
Q

What occurs during single limb support?

A
  • Limb is unloaded and comes off the ground

- Limb moves from behind to in front of body

24
Q

What happens at the knee and ankle during Pre-Swing?

A
  • Passive knee extension to 40 degrees

- Rapid ankle PF

25
Q

When does maximum knee flexion occur?

A

Initial Swing

26
Q

When does maximum hip flexion occur?

A

Mid swing

27
Q

The Trunk and Pelvis twist around what type of axis?

A

Vertical Axis

28
Q

What is the average pelvic excursion?

A

10 degrees

29
Q

What is the average shoulder excursion?

A

7 degrees

30
Q

What is the average side to side movement of the pelvis?

A

46mm

31
Q

When does the pelvis rotate forward?

A

For the first 15-20%

32
Q

When does the opposite swing leg pelvis drop down? By how much?

A
  • During weight acceptance

- 3-4%

33
Q

When does the pelvis rotate in a clockwise direction?

A

During Terminal stance

34
Q

When is the right ASIS rotated back?

A

Right Toe off

35
Q

When does peak hip extension occur?

A

Opposite IC

36
Q

When does peak knee extension occur?

A

Terminal stance and prior to IC

K&B II (6 decks)

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