Normal Gait

Question 1

The determinates of gait describe

Answer 1

Processes by which the body attempts to resist change to the position of the center of gravity during normal human walking

Question 2

There are six determinants of gait, which while described individually, function simultaneously.

Answer 2

True

Question 3

The stance phase portion represents about 60%-62% of the gait phase.

Answer 3

True

Question 4

A stride is defined as

Answer 4

The equivalent of one gait cycle

Question 5

A step is defined as

Answer 5

The equivalent of one half a stride

Question 6

Perry lists the three phases of swing in normal gait as pre-swing, swing, and terminal swing

Answer 6

True

Question 7

Signs of mature gait include

Answer 7

• Narrowed walking base
• heel strike at initial contact
• reciprocal arm swing
• knee flexion wave

Question 8

At initial contact, the ankle is in what angular attitude?

Answer 8

Neutral (90)

Question 9

The muscular activity at initial contact is as follows:

Answer 9

Hip Flexors, Knee Extensors, Ankle Dorsiflexors

Question 10

The knee is ____ at Initial Contact

Answer 10

Completely extended

Question 11

During which phase of gait is the hip hyperextended?

Answer 11

Pre Swing

Question 12

During which phase(s) of gait does the knee reach maximum flexion?

Answer 12

Acceleration, Midswing

Question 13

During which phase(s) of gait does the hip reach maximum flexion?

Answer 13

Initial Contact, Mid Swing, Deceleration

Question 14

At late mid stance the ground reaction line is a follows:

Answer 14

Anterior ankle, anterior knee, posterior hip

Question 15

At Pre Swing the ground reaction line is as follows:

Answer 15

Anterior Ankle, Posterior Knee, Posterior Hip

Question 16

The phase of gait where the ground reaction line falls anterior to the ankle, anterior to the knee, and posterior to the hip is:

Answer 16

Terminal Stance

Question 17

The ankle reaches maximum plantarflexion during which phase(s) of gait?

Answer 17

Initial Swing, Pre-Swing

Question 18

An average walking speed is 113 steps/min or about:

Answer 18

3 mph

Question 19

Running is:

Answer 19

Absence of double limb support

Question 20

Lateral displacement of the hip during normal human walking is:

Answer 20

1 to 3 inches

Question 21

A normal width of walking base is about

Answer 21

4 to 5 cm

Question 22

The horizontal dip of the pelvis during normal human walking equals how many degrees

Answer 22

5 Degrees

Question 23

The vertical displacement of the center of gravity is:

Answer 23

2 cm

Question 24

How much knee flexion is present from heel strike to loading response and why?

Answer 24

20 Degrees; Minimize vertical displacement of the center of gravity

Question 25

The first indicators of maturing gait include:

Answer 25

- heel strike at the initial contact - reciprocal arm swing - knee flexion wave - the walking base will grow narrower

Question 26

For practical gait units of measure, the terms stride and step are used. A stride is the same as one gait cycle and is defined as the interval between the initial contact of one leg and initial contact of the other leg.

Answer 26

False

Question 27

Initial contact is an instantaneous event at the moment the foot first contacts the ground. It is a period of double limb support. The ground reaction line is anterior to the hip joint, anterior to the knee joint, and posterior to the ankle joint. Because of this, which of the following statement is true of the moments being generated at this point?

Answer 27

- It is generating a flexion moment at the hip - it is generating an extension moment at the knee - no moment is generated at the ankle

Question 28

A period of single limb support occurs during loading response when the foot is flat on the floor and continues to mid stance as the leg approaches perpendicular to the ground.

Answer 28

True

Question 29

Terminal stance occurs at the end of single limbs stance. The ground reaction line is generating:

Answer 29

- extension moment at the hip - extension moment at the knee - dorsiflexion moment at the ankle