Biomechanics Of Running

Question 1

What is the difference of the ground reaction force between rear foot and non-rear foot runners?

Answer 1

Rear foot runners have a steeper and more powerful force whereas non-rear foot runners have a more gradual less powerful force

Question 2

What is the stance phase in walking?

Answer 2

> 50% of the gait cycle (results in period of double leg stance)

Question 3

What is the stance phase in running?

Answer 3

<50% of gait cycle (results in a period of double leg float)

Question 4

Where does deceleration from the float phase happen?

Answer 4

Both vertically and horizontally

Question 5

Is the upper body trunk rotation and pelvis rotation greater or lesser with running as compared to walking?

Answer 5

Greater

Question 6

Is the step width greater or lesser with running as compared with walking?

Answer 6

Lesser

Question 7

What does the hip do during late swing phase in running?

Answer 7

Hip extension

Question 8

Why are quads and hamstrings more active during running?

Answer 8

In order to brace for impact

Question 9

Why is the glutes more active during running?

Answer 9

To control the forces

Question 10

Why is the anterior Tibialis more active during running?

Answer 10

To keep the foot up