Wk12- Gait

Question 1

What is happening in initial contact

Answer 1

HIP: flexed approx 30deg
KNEE; flexed 0-5deg
ANKLE: neutral
STJ: supinatied
MTJ: supinated
1St R: dorsiflexed

Muscle activity: glutes, hamstrings, quads, tib ant/extensors

Question 2

What is happening in loading response

Answer 2

HIP: flexed but moving into extension
KNEE: flexed 15deg
ANKLE: plantarflexion 10deg
STJ: pronated
MTJ: inverted

Muscle activity: posterior and anterior lower leg muscles, quad

Question 3

What is happening in midstance

Answer 3

HIP: extension
KNEE: extension
ANKLE: dorsiflexion in late midstance
STJ: supinated
MTJ: everted (locking mechanism)
1st ray: plantarflexed

Muscles: triceps Surae

Question 4

What happens in terminal stance

Answer 4

HIP: extends to 10-20deg
KNEE: full extension
ANKLE: plantarflexion
STJ: supinated
MTJ: everted

Muscles: ilispoas, triceps surae

Question 5

What happens in pre swing

Answer 5

HIP: neutral
KNEE: flexed 40deg
ANKLE: plantarflexed 20deg
STJ: supinated

Muscles: recuts femoris, iliospas

Question 6

What happens in terminal swing

Answer 6

HIP: flexed to 40deg
KNEE: max flexion at 60 to full extension
ANKLE: dorsiflexed
STJ: pronates and supinates
MTJ: inverted and dorsiflexed
1st ray: dorsiflexed

Question 7

Common abnormalities in sagittal plane

Answer 7

• drop foot
  -ankle equinus
• knee flexion at contact
  -lack of knee flexion during loading response
  -excessive knee/hip flexion during swimg
  -Step length asymmetry

Question 8

Common abnormalities in frontal plane

Answer 8

• trendeleberg pelvis drop
  -genu Varum/valgus
  -tibial VL/ VR
  -Cal inversion/eversion at inappropriate times