Chapter 7 Definitions

Question 1

step length

Answer 1

the distance traveled between the initial contracts of the right and left foot

Question 2

center of gravity

Answer 2

the point inside or outside the body where the body is equally balanced or where gravitational pull is concentrated

Question 3

kinematic

Answer 3

the characteristics of movement related to time and space (eg, range of motion, velocity, and acceleration); the effects of joint action

Question 4

kinetic

Answer 4

the forces being analyzed; the causes of joint action

Question 5

stance phase

Answer 5

the weight-bearing phase of gait, beginning on initial contact with the surface and ending when contact is broken

Question 6

swing phase

Answer 6

the non-weight bearing phase of gait; beginning at the instant the foot leaves the surface and ending just before initial contact

Question 7

moment of inertia

Answer 7

the amount of force needed to overcome a body’s or body part’s present state of rotatory motion

Question 8

reflex inhibition

Answer 8

a reflex arc prohibiting the contraction of a specific muscle or muscle group