Chapter 2 - Biomechanics of Resistance Exercise

Question 1

Acceleration

Question 2

Agonist

Answer 2

The muscle most directly involved with bringing about the movement, also called the ‘Prime Mover’

Question 3

Anatomical Position

Question 4

Angle of Pennation

Question 5

Angular displacement

Question 6

Angular velocity

Question 7

antagonist

Answer 7

Muscles that slow down or stop a movement

Question 8

biomechanics

Answer 8

The study of how the musculoskeletal components interact and create movement

Question 9

bracketing technique

Question 10

Cartilaginous joints

Question 11

Classic formula

Question 12

concentric muscle action

Question 13

distal

Answer 13

Away from the center of the body

Question 14

dorsal

Question 15

eccentric muscle action

Question 16

Fibrous attachments

Question 17

First class lever

Answer 17

A lever for which the muscle force and resistive force act on opposite sides of the fulcrum

Question 18

Fleshy attachments

Answer 18

Where muscle fibers are directly fixed to bones, usually over a wide area so that the force is distributed well

Question 19

Fluid resistance

Question 20

Form drag

Question 21

Friction

Question 22

Frontal plane

Question 23

fulcrum

Answer 23

the pivot point of a lever

Question 24

intertial force

Question 25

insertion

Answer 25

The distal attachment site of a muscle

Question 26

isometric muscle action

Question 27

kyphotic

Question 28

lever

Answer 28

A rigid or semi-rigid body that, when subjected to a force whose line of action does not pass through its pivot point, exerts a force on any object impeding its tendency to rotate

Question 29

lordotic

Question 30

Mechanical advantage

Answer 30

The ratio of the moment arms through which an applied force acts to that through which a resistive force acts. For there to be a state of equilibrium between the applied force and the resistive force, the product of the muscle force and the moment arm through which it acts must equal

Question 31

moment arm

Question 32

muscle force

Question 33

origin

Answer 33

The Proximal attachment site of a muscle

Question 34

pennate muscle

Question 35

power

Question 36

proximal

Answer 36

Toward the center of the body

Question 37

rate coding

Question 38

recruitment

Question 39

resistive force

Question 40

rotational power

Question 41

rotational work

Question 42

sagittal plane

Question 43

second class lever

Question 44

strength

Question 45

surface drag

Question 46

synergist

Answer 46

Assists indirectly in a movement

Question 47

tendons

Question 48

third class lever

Question 49

torque

Question 50

transverse plane

Question 51

Valsalva maneuver

Question 52

ventral

Question 53

vertebral column

Question 54

weight

Question 55

Work

Question 56

Which of the following is the definition of power?

• Mass x Acceleration
• Force x Distance
• Force x Velocity
• Torque x Time

Question 57

To compare the performances of Olympic weightlifters of different bodyweights, the classic formula divides the load lifted by which of the following:

• Bodyweight of the athlete
• Bodyweight of the athlete Squared
• lean body weight of the athlete
• Body weight of the athlete to the 2/3’s power

Question 58

During free weight exercise, muscle force varies with which of the following?
I. Perpendicular distance from the weight to the body joint
II. Joint angle
III. Movement Acceleration
IV. Movement velocity squared

• I & II only
• I and IV only
• I, II, & III only
• II, III, & IV only

Question 59

A vertical jump requires knee, hip, and shoulder movement primarily in which of the following anatomical planes?

• sagittal
• perpendicular
• frontal
• transverse

Question 60

An athlete is performing a concentric isokinetic elbow flexion and extension exercise. Which of the following types (s) of levers occurs at the elbow during this exercise?
I. First class
II. Second class
III. Third class

• I only
• II only
• I & III only
• II and III only