Chapter 7

Question 1

Any force that opposes an initial active force

Answer 1

Reactive forces

Question 2

The basic arrangement of the body and all of our limbs.

Answer 2

Posture

Question 3

These are our slow-twitch muscle fibers. This fiber is designed to be used for aerobic glycolysis and fatty acid oxidation. We use these for low, intensity and longer duration exercises.

Answer 3

Type 1 muscle fibers

Question 4

These are our fast-twitch muscle fibers. These fibers are found in skeletal muscle tissue. They have low oxidative capacity but a high glycolytic capacity. These are used for quick, powerful movements

Answer 4

Type 2 Muscle fibers

Question 5

A characteristic of joints within the body or posture that is representative of resistance to change

Answer 5

Stability

Question 6

The level to which any articulation is able to move before the tissues that surround it stop the movement.

Answer 6

Mobility

Question 7

The theoretical vertical line passing through the center of gravity, breaking the body into two separate hemispheres.

Answer 7

Line of Gravity

Question 8

This occurs in the forearm only. It is internal rotation of the forearm that causes the radius to cross diagonally over the ulna and the palm and face posteriorly.

Answer 8

Pronation

Question 9

This occurs in the forearm only. It is external rotation of the radioulnar joint causes the palm to face anteriorly.

Answer 9

Supination

Question 10

Any movement toward the midline of the body

Answer 10

Adduction

Question 11

Any movement that is away from the line of the body

Answer 11

Abduction

Question 12

Prime moving muscles for squats

Answer 12

Quadriceps and gluten

Question 13

Lordosis

Answer 13

Increased anterior lumbar curve

Question 14

Kyphosis

Answer 14

Increased Posterior lumbar curve

Question 15

when rotation of the foot brings the plantar surface outward

Answer 15

Eversion

Question 16

when rotation of the foot brings the plantar surface inward.

Answer 16

Inversion