Week 13

Question 1

Define gait

Answer 1

A persons manner of walking

Question 2

1 stride = what

Answer 2

2 steps

Question 3

1 step = what

Answer 3

one heel contact to opposite heel contact

Question 4

2 phases of gait

Answer 4

Stance

swing

Question 5

What is double support phase

Answer 5

When stance phase overlaps

- differentiates walking from running

Question 6

what is the % of stance and swing phase during free speed walking

Answer 6

Stance phase = 62%

Swing phase = 38%

Question 7

Events of walking gait in order

Answer 7

• Heal contact (strike)
  
  • Foot flat
  • Mid stance
  • Heel off
  • Toe off
  • Heel contact

Question 8

What is excess hip drop from

Answer 8

Abductor muscle weakness

Question 9

At right heel contact, right hip…..

Answer 9

externally rotated

Question 10

During right leg support, right hip…..

Answer 10

Internally rotates until left heel contact

Question 11

During right leg swing, right hip……

Answer 11

Right hip externally rotates

Question 12

Effects of eversion on gait

Answer 12

• Increases mid-foot flexibility

Foot can handle variable terrain

Question 13

Effects of inversion on gait

Answer 13

• Increase mid-foot rigidity

- Equips foot for load bearing and push off

Question 14

Timing of muscle activation

Answer 14

1. Gluteus Medius 0 - 20, Vastii 0 -20, tibialis anterior 0 - 10
   
   2. Gastrocnemius 0 - 50
   3. Iliopsoas 30 - 60
   4. Hamstrings 8 - 100
   5. Gluteus maximus 90 - 100

Question 15

What happens to gait during running

Answer 15

• Double support phase replaced by flight phase
  
  • Stance phase becomes very brief
  • Joint ROMs and joint angle velocities increase
  • Jogging more efficient than fast walking