Week 6 Flashcards

1
Q

Gait analysis considers what (7)

A
spatial & temporal descriptors 
Control of the body's centre of mass
Joint kinematics
Energy expenditure
Muscle activity
Walking kinetics
Gait dysfunction
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2
Q

What are the three phases of walking

A

Development - initiation of movement
Rhythmic - locomotion part
Decay - termination

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3
Q

Gait analysis is the simple repetition of

A

foot picked up
moved forwards
placed down & walked over

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4
Q

What measurements is gait defined in

A

distance and time

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5
Q

General terminology of gait (4)

A

Heel strike/contact
initial contact
stride
step

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6
Q

Spatial descriptors (4)

A

Stride length
Step length
Step width
Foot angle

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7
Q

Temporal descriptors (3)

A

Cadence
Stride time
Step time

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8
Q

Spatial temporal descriptors

A

Walking speed

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9
Q

Define stride length

A

Distance between successive heel strike of same foot

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10
Q

Define step width

A

Distance between heel centres of 2 consecutive contacts (opposite feet)

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11
Q

Define step length

A

Distance between successive heel strike of opposite foot

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12
Q

Define foot angle (toe out)

A

Angle between line of progression of the body and long axis of foot

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13
Q

What is cadence

A

Number of steps per minute

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14
Q

What is stride time

A

Time for full gait cycle

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15
Q

What is step time

A

Time for step cycle i.e. completion of a L or R step

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16
Q

Pages to review

A

15,18,26,43

17
Q

Females vs males

A

slower speed
shorter step
faster cadence
consistent even when anthropometrically matched

18
Q

Walking gait stance vs swing phases

A

60% stance and 40% swing

19
Q

When are both feet on the ground during gait cycle

A

0-10 and 50-60%

20
Q

What to look for at hip during gait (frontal plane)

A

trendelenberg gait
hip hiking
cross over gait pattern

21
Q

what to look for at the knee (frontal plane)

A

valgus knee position dynamially

22
Q

what to look for at the foot during gait

A

excessive pronation or supination

23
Q

what to look for at the pelvis (sagittal plane)

A

should move minimally

24
Q

what to look for at 1st TMT (sagittal plane)

A

must demonstrate sl PF and DF

25
Q

what to look for at 1st MTP

A

crucial to normal gait

reduced ROM approx. 45-55 degrees - considerable impact on foot function& gait

26
Q

Foot function during gait

A
shock absorption
adaptive to terrain 
mobilr 
strong
rigid lever

mobile at the start
rigid at the end

27
Q

Heel contact to foot flat stage

A

land on heel in slight subtalar supination

ST joint immediately pronates to bring foot flat to the ground

  • IR tibia on femur - unlocks knee joint allows it flex
  • calcaneal eversion
  • Subtalar pronation
28
Q

midstance stage

A

weight bearing stage
- closed kinetic chain

ST joint supination starts to occur
- associated with ER of tibia on leg
calcaneal inversion
subtalar supination
promotes stability in TT joint (locked ) and forefoot
Start of creating a rigid foot to allow for propulsion to occur

29
Q

propulsion stage

A

subtalar joint supinates
ER, inversion, locks TT
ROM is minimised

Heel life causes windlass effect to occur

  • DF of first MTP raises arch height – stretches deep plantar fascia
    • heightens arch by shortening distance from heel to toe
  • increases arch tenion - assists stabilising longitudinal arch
  • -extremely important for gait propulsion
  • —clinical impact of decrease ROM at 1st MTP
30
Q

When does the transition from walking to running

A

approx. 180steps/min or 2.1-.2.2 m/sec

Decrease stance phase and increase swing phase

-double limb swing phase = float phase

31
Q

Running effect on parameters

A

increase stride length
stride frequency higher
position of body’s COM is lower (vertical oscillation) an is closer to point of foot contact
ROM increased

32
Q

difference between running and walking

A

running - muscular drive

walking - propulsive drive