Gait Flashcards

1
Q

what is heel strike?

A

instant heel contacts the ground

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2
Q

what is loading response?

A

From heel contact to foot flat
Phase continues until contralateral limb lifts off ground

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3
Q

what is mid stance ?

A

From foot flat position until the body above is supported over the weight bearing limb
Begins when contralateral extremity lifts off the grounf

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4
Q

What is terminal stance?

A

From mid stance through heel off the WB extremity
From mid stance until initial contact of contralateral extremity

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5
Q

what is presswing?

A

From hell off until toe off of the WB extremity

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6
Q

what is initial swing?

A

from toe off until maximum knee flexion of ipsilateral extremity (thigh perp to floor)

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7
Q

what is midswing?

A

From Max knee flexion until tibia is in a vertical position

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8
Q

what is terminal swing?

A

From vertical tibia position until just before initial contact of the ipsilateral extremity

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9
Q

during initial contact/ heel strike what is the ankle / TC joint doing?

A

Neutral
Sagittal plane

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10
Q

during initial contact / heel strike what is the subtalar joint doing?

A

supinated

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11
Q

during initial contact / heel strike what are the toes doing?

A

15° extension

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12
Q

during loading response / foot flat what is the ankle doing?

A

PF 15° (= 15° PF IC to LR)

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13
Q

during loading response / foot flat what is the subtalar joint doing?

A

Begins pronation (GRF lateral to ICR)

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14
Q

during loading response / foot flat what are the toes doing?

A

Flexing

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15
Q

during mid stance what is the ankle doing?

A

5-10° DF (= 20-25° DF from LR through MS)

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16
Q

during mid stance what is the subtalar joint doing?

A

LR through MS completes pronation
Supination begins at MS & is complete by end of mid stance

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17
Q

during mid stance what are toes doing?

A

Neutral

18
Q

during terminal stance / heel off what is the ankle doing?

A

Neutral (=5° PF to neutral from mid stance through terminal stance)

19
Q

during terminal stance / heel off what is the subtalar joint doing/

A

Supinated or supinating

20
Q

during terminal stance / heel off what is the toes doing?

A

extension to 30°

21
Q

During preswing / Toe off what is the ankle doing?

A

PF to 20°

22
Q

During preswing / Toe off what is the subtalar joint doing?

A

supinated

23
Q

During preswing / Toe off what are the toes doing?

A

50-60° extension

24
Q

During initial swing / acceleration what is the ankle doing?

A

10 ° PF (= 10° DF from Preswing through initial swing)

25
Q

During initial swing / acceleration what is the subtalar joint doing?

A

supinated

26
Q

During initial swing / acceleration what are the toes doing?

A

Flexing

27
Q

During midswing what is the ankle doing?

A

neutral

28
Q

During midswing what is the subtalar joint doing?

A

Supinated

29
Q

During midswing what are the toes doing?

A

neutral

30
Q

During terminal swing / Deceleration what is the ankle doing?

A

Neutral

31
Q

During terminal swing / Deceleration what is the subtalar joint doing?

A

supinated

32
Q

During terminal swing / Deceleration what are the toes doing?

A

15° extension

33
Q

what is the muscle contraction of ankle happens during loading response?

A

Eccentric Tibilais Anterior

34
Q

what is the muscle contraction of ankle during mid stance?

A

Eccentric triceps surae

35
Q

what is the muscle contraction of ankle during terminal stance?

A

Concentric triceps surae

36
Q

what is the muscle contraction of ankle during preswing?

A

Concentric triceps surae

37
Q

what is the muscle contraction of ankle during initial swing?

A

Concentric Tibialis Anterior

38
Q

what is the muscle contraction of ankle during midswing?

A

Concentric Tibialis Anterior

39
Q

what is the muscle contraction of ankle during terminal swing?

A

Isometric Tibilas Anterior

40
Q

what is the interaction of the ankle/foot during initial contact through loading response?

A

Knee Flexion, TC PF, Subtalar pronation
Shortening of extremity preventing preventing an abrupt rise in COM after heel strike
W/O occurrence would see sharp rise in COM as tibia glides over talus

41
Q

what is the interaction of knee, ankle/foot during mid stance through terminal stance?

A

COM is lowering
Smooth transition via knee extension, TC PF, subtalar supination towards heel off
Slows descent of COM by a relative lengthening of stance limb