Midterm Prep

Question 1

Force

Answer 1

Mass X Acceleration

Question 2

Acceleration of gravity

Answer 2

9.81 m/s^2

Question 3

Moment arm

Answer 3

Distance between the force’s line of action and the axis of rotation

Question 4

BMI

Answer 4

Mass(kg) / height(meters)^2

Question 5

Essential fat

Answer 5

Required for normal physiological function

Question 6

Storage fat

Answer 6

Stored in adipose tissue for energy supply purposes

Question 7

(6) Joint movements

Answer 7

1. Flexion-Extension
2. Abduction-Adduction
3. Rotation ( Inward-Outward )
4. Supination-pronation
5. Elevation-Depression
6. Plantar flexion-dorsflexion

Question 8

Synovial joint

Answer 8

Freely moveable

e.g., Elbow joint

Question 9

Cartilaginous joint

Answer 9

Slightly moveable

e.g., Growth Plate

Question 10

Fibrous joints

Answer 10

Immovable

e.g., skulls

Question 11

Example of a long bone

Answer 11

Femur & Tibia

Question 12

Example of a short bone

Answer 12

Tarsal and Carpals

Question 13

Example of flat bone

Answer 13

Frontal and Parietal skull bones

Question 14

2 Types of body composition prediction equations

(1) Population Specific

Answer 14

-Yuhasz

Question 15

2 Types of body composition prediction equations

(2) Generalized

Answer 15

• Jackson, Pollock
• Durnin, Wormersley
• Peterson
• Wang

Question 16

Frontal plane

Answer 16

Divides body into anterior and posterior

e.g., dick and ass

Question 17

Sagittal plane

Answer 17

Divides body into right and left side

Question 18

Transverse plane

Answer 18

Divided body into superior and interior

e.g., Up and Down

Question 19

Common joint disorders

Answer 19

1. Sprain
2. Dislocation
3. Subluxation
4. Bursitis
5. Arthritis

Question 20

Dynamic (isotonic) contraction

Answer 20

Levers move through a range of motion

Question 21

Isometric contraction

Answer 21

Tension builds but no motion

Question 22

Isokinetic contraction

Answer 22

Muscle is shortened at a constant velocity determined my instrumentation

Question 23

Torque

Answer 23

The product of force and the perpendicular distance from the force’s line of action to the axis of rotation. It may be thought of as rotary force

Units= Newton-meters (N.m)

Question 24

Newton’s Laws of Motion

Answer 24

1. Objects will maintain a state of rest or motion unless acted upon by an outside force
2. Force = Mass X Acceleration
3. For every action there is and opposite and equal reaction

Question 25

Synovial fluid function

Answer 25

1. Lubricates the joint surfaces as they slide over each other during joint movement
2. Supplies nutrients to, and removes waste products from, the cartilage cells which have no direct blood supply

Question 26

Pressure

Answer 26

Force/Area

Question 27

Power

Answer 27

Force X volcity