Gait

Question 1

What are the six determinants of gait?

Answer 1

1) pelvic rotation
2) pelvic tilt
3) stance knee flexion
4) foot mechanisms
5) knee mechanisms
6) lateral displacement of pelvis

Question 2

What is the inverted pendulum model?

Answer 2

The work done while walking elevates the COM and is recaptured on the decline (a pendulum swinging). Essentially you create energy and use that energy in a cycle so that walking becomes very efficient

Question 3

What is the difference between walking and running?

Answer 3

Double support time lost

Question 4

What are some of the sexual dimorphisms in gait?

Answer 4

Females: greater cadence (walk faster), shorter step length, narrower step width, knee more valgus, pelvis tilted more anterior

Question 5

What upper motor neuron diseases could cause muscle weakness?

Answer 5

Stroke, multiple sclerosis, tumors, spinal cord injury

Question 6

What lower motor neuron diseases could cause muscle weakness?

Answer 6

Amyotrophic lateral sclerosis (Lou Gehrig), peripheral neuropathies