Perry: Ch1-3.

Question 0

What necessitates viewing gait from several different aspects?

Answer 0

Each walking sequence involves a series of interactions between 2 multisegmented lower limbs and the total body mass therefore identification of the numerous events that occur.

Question 1

Describe walking

Answer 1

A repetitious sequence of limb motions to simultaneously move the body forward while also maintaining stance stability

Question 2

What are the 3 approaches to viewing gait?

Answer 2

First divides the cycle according to the variations in reciprocal floor contact by the 2 feet
Second uses time and distance qualities of the stride
Third identifies the functional significance of the events within the gait cycle(GC) and designates these intervals as the functional phases of gait

Question 3

For the transfer of body weight from one foot to the other

Answer 3

Both feet are in contact with the ground

Question 4

Onset of the GC

Answer 4

Initial contact

Question 5

2 periods of a gait cycle

Answer 5

Stance

Swing

Question 6

Stance

Answer 6

Period during which the foot is on the ground

Begins with IC

Question 7

Swing

Answer 7

The time the foot is in the air for limb advancement

Begins with toe off

Question 8

3 intervals of stance

Answer 8

Initial double limb stance
Single limb support
Terminal double limb stance

Question 9

Initial double stance

Answer 9

Begins gc

Ic initiates this when both feet are on the ground

Question 10

Sls

Answer 10

Best index of limbs support capacity

Longer durations reflect greater stability

Question 11

Terminal double stance

Answer 11

Begins with contralateral ic

And continues till ipsilateral toe off

Question 12

Generic distribution for stance and swing

Answer 12

60% stance
40% swing
Dependent on persons walking velocity

Question 13

Customary rate of walking with stance and swing percentage

Answer 13

82 m/min (1.36m/s)
62% stance
38% swing
Double stance 12%

Question 14

Duration of gait periods with walking speed

Answer 14

Inverse relationship

Both total stance and swing times shortened as gait velocity increases

Question 15

Walking faster affect on stance

Answer 15

Proportionally lengthens single stance and shortens the 2 double support intervals
Reverse if walking speed slows
Change of pattern is curvilinear

Question 16

Sls of one limb equals

Answer 16

Swing of the other limb as they are occurring at the same time

Question 17

Double stance omitted

Answer 17

Person is running

Question 18

Stride

Answer 18

Equivalent of a gc
Based on actions of one limb
Interval between two sequential initial floor contacts by the same limb (ie right IC and the next right IC)

Question 19

Step

Answer 19

Timing between the 2 limbs

2 steps in each stride or GC