Gait

Question 1

MM activity for tibialis anterior

Answer 1

Peak activity is just after heel strike. Responsible for eccentric lowering of the foot into PF

Question 2

MM activity for Gastroc-soleus group

Answer 2

Peak activity is during late stance phase. Responsible for concentric raising of the heel during toe off

Question 3

MM activity for Quadriceps group

Answer 3

Two periods of peace activity. In periods of single support during early stance phase and just before toe off to initial swing phase.

Question 4

MM activity for Hamstrings group

Answer 4

Peak activity is during late swing phase. Responsible for decelerating the unsupported limb.

Question 5

Stance phase is ____ % of gait cycle

Answer 5

60%

Question 6

Swing phase is _____ % of gait cycle

Answer 6

40%

Question 7

Degree of toe-out:

Answer 7

angle formed by each foots line of progression and line intersecting the center of the heel and second toe. The average degree of toe out for an adult is 7 degrees

Question 8

Cadence

Answer 8

The number of steps an individual will walk over a period of time. The average value for an adult is 110-120 steps

Question 9

Double support phase

Answer 9

Occurs two times during a gait cycle where both feet are on the ground the time of double support increases as the speed of gait decreases. The phase does not exist with running

Question 10

Pelvic rotation:

Answer 10

Rotation of the pelvis occurs opposite thorax in order to maintain balance are regulate speed. The average pelvic rotation during gait for an adult is a total of 8 degrees. (4 degrees forward with the swing leg and 4 degrees backward with the stance leg.)

Question 11

Step length:

Answer 11

The distance measured between right heel strike and left heel strike. The average step length for an adult is 28 inches.

Question 12

Stride length:

Answer 12

The distance measured between right heel strike and the following right heel strike. The average stride length for an adult is 56 inches.