Back to quiz

6. If there is an equal retarding and propulsion phase, what is it called?

  • Steady state
  • Propulsion gait
  • Slowing gait

7. What is the coefficient of static friction?

  • When two objects are not moving relative to one another
  • When 2 objects are moving relative to each other

8. How does the shape of GFR curves differ in walking and running?

  • They are similar
  • Running is more spaced out
  • Walking is more spaced out
  • They have completely different shapes

9. What is the max posterior force during walking gait?

  • 0.75 bw
  • 0.25 bw
  • 0.5 bw
  • 0.2 bw

10. What equation represents the law of acceleration?

  • F.t = mv
  • F.t = mv/t
  • F = (m2v2-m1v2)/t
  • F.t = ∆mv

11. What acts parallel to where 2 surfaces contact during the motion of one surface relative to another?

  • Instant of motion
  • Friction
  • Momentum

12. What is the maximal medial force in running?

  • 0.75 bw
  • 0.25 bw
  • 0.5 bw
  • 1 bw

13. What is commonly used to measure force in gait analysis?

  • Eye tracking
  • Force platform
  • Electromyography
  • Video analysis

14. What is frictional force dependant on?

  • Normal reaction force (F) and coefficient of friction
  • Normal reaction force and mass of objects
  • Normal reaction force and surface

15. If the propulsion phase is larger than the retarding phase, what is the gait called?

  • Propulsion gait
  • Slowing gait
  • Steady state

16. On initial contact, what direction is the force in running?

  • Posterior movement
  • Anterior movement

17. Is there a heel strike in fore foot strikers?

  • Depends
  • No
  • Yes

18. The coefficient of friction is the amount of interaction between 2 materials/objects

  • True
  • False

19. What is the maximal medial force during walking?

  • 0.1 bw
  • 0.3 bw
  • 0.2 bw
  • 0.25 bw

20. What is usually smaller, coefficient of static friction or dynamic friction?

  • Dynamic friction
  • Static friction
  • Depends