Tissue Properties

Question 1

Acute injury lasts up to _________ days.

Answer 1

~5

Question 2

Subacute injury lasts from ___-___ days.

Answer 2

5-10 (up to 21) after acute phase has ended

Question 3

Chronic injury begins around _____-_____ days after injury and lasts up to _______ or more.

Answer 3

26-34 days; 1 year or more.

Question 4

Sprain is injury to a _______.

Answer 4

Ligament

Question 5

Strain is injury to a ________.

Answer 5

Muscle

Question 6

______ is directly related to the magnitude of force and inversely related to the unit area.

Answer 6

Stress

Question 7

_______ is a change in length of a material due to an imposed load divided by the original length.

Answer 7

Strain

Question 8

Identify the three major phases of injury.

Answer 8

Inflammatory
Proliferative
Remodeling

Question 9

PRICE and MEM are appropriate interventions during which phase of injury?

Answer 9

Inflammatory

Question 10

Active recovery, ROM, and isometrics are appropriate interventions during which phase of recovery?

Answer 10

Proliferative

Question 11

Minimal structure damage is classified as what degree of muscle injury?

Answer 11

First degree

Question 12

Partial tear with a large spectrum of injury is classified as what degree of muscle injury?

Answer 12

Second degree

Question 13

A complete tear is classified as what degree of muscle injury?

Answer 13

Third degree

Question 14

List the modifiable risk factors for muscle strains (4)

Answer 14

Muscle weakness/imbalance
Fatigue
Lack of flexibility
Poor coordination

Question 15

List the non-modifiable risk factors for muscle strains (4):

Answer 15

Age
Prior history of injury
Gender
Surface/sport

Question 16

T/F Weight and BMI do not influence the risk of muscle strain.

Answer 16

True

Question 17

PEACE stands for:

Answer 17

Protection (first 48-72 hrs)
Elevation (above heart)
Avoid (NSAIDS)
Compression (reduce swelling)
Education

Question 18

LOVE stands for:

Answer 18

Load (graded exposure)
Optimism
Vascularization
Exercised

Question 19

Identify three factors affecting the risk of injury for a tendon:

Answer 19

Age
Hormone levels
Load (and load/history/absence of load)

Question 20

Tendons heal SLOWER/FASTER than muscle.

Answer 20

Slower (7.5x lower O2 consumption)

Question 21

Unique aspect of tendon injury that occurs throughout the day.

Answer 21

Warming phase (24 hr pattern -stiffness, pain, improvement)

Question 22

Some stretching or tearing of the ligamentous fibers is classified as what grade of ligament injury?

Answer 22

Grade 1 (mild)

Question 23

Some tearing and separation of the ligamentous fibers is classified as what grade of ligament injury?

Answer 23

Grade 2 (moderate)

Question 24

Total rupture of the ligament is classified as what grade of ligament injury?

Answer 24

Grade 3 (complete)

Question 25

No laxity occurs in what grade of ligament injury?

Answer 25

Grade 1

Question 26

Moderate laxity occurs in what classification of ligament injury?

Answer 26

Grade 2

Question 27

Cartilage, particularly articular cartilage heals very WELL/POORLY.

Answer 27

Poorly

Question 28

Max laxity occurs in what grade of ligament injury?

Answer 28

Grade 3

Question 29

_____ heals better than any other tissue in the body.

Answer 29

Bone

Question 30

Identify the four stages of bone injury/healing.

Answer 30

Inflammation Granulation tissue/soft callus formation. Hard callus formation Bone remodeling and consolidation

Question 31

Grade 1 muscle injury healing timeline.

Answer 31

0-4 weeks

Question 32

Grade 2 muscle injury healing timeline.

Answer 32

1 week to 3 months

Question 33

Grade 3 muscle injury healing timeline.

Answer 33

2-3 months to >1 year

Question 34

Identify the tissue based on the following rehabilitation guidelines: Exposure to load, compressive forces, vibration to increase density and strength.

Answer 34

Bone

Question 35

Identify the tissue based on the following rehabilitation guidelines: Progressive load through tensile stress in line with force exposure.

Answer 35

Ligament

Question 36

Identify the tissue based on the following rehabilitation guidelines: Progressive load through tensile stress in line with force exposure to improve cross linkage and collagen fiber organization.

Answer 36

Tendon

Question 37

Identify the tissue based on the following rehabilitation guidelines: Progressive load exercises to facilitate adaptation, altering speed from slow to faster to improve RFD and motor recruitment.

Answer 37

Muscle

Question 38

Identify the tissue based on the following rehabilitation guidelines: Lower to moderate load throughout ROM.

Answer 38

Cartilage