Linear Kinetics

Question 1

Types of internal forces

Answer 1

Compression, Tension, Shear

Question 2

knee joint at risk for what type of force

Answer 2

shear

Question 3

What type of force is asymmetrical loading that produces tension on one side and compression on the other. What type of injury might result?

Answer 3

Bending.

Question 4

what kind of force is :twisting of body around its long axis

Answer 4

Torsion

Question 5

Types of fractures

Answer 5

Oblique,compound, Comminuted, Spiral

Question 6

When a load is applied to the human body what factors will determine if an injury occurs

Answer 6

• Magnitude and direction of the force.
• The time course of force application.
• The area over which it is distributed.
• Properties of the tissue being loaded.

Question 7

Define Pressure

Equation

Answer 7

Defined as the force per unit area

P=F/A

Question 8

THree main mechanisms of injurt

Answer 8

Sustained, repetitive, excessive loading

Question 9

Excessive force produces

Answer 9

Macrotrauma

Question 10

Low loads applied repeatedly causes

Answer 10

Microtrauma

Question 11

Repetitive loading of tissues results in

Answer 11

Decreased failure tolerance

Question 13

What is a moment arm

Answer 13

Perpendicular distance from joint axis to line of force