Explain the relationship of scar tissue formation, Wolff's Law, controlled motion, and how immobilization may adversely affect healing. Scar tissue is...
Unit 6 – INJURY AND HEALING PROCESS Unit Worksheet Name __________________________________________ Period ____________ 1. Explain the different between acute and chronic injury.
2. Give 2 examples of acute injury and 2 examples of chronic injury.
3. The body’s normal response to injury is the definition of ______________________. 4. Fill in the following table: Phase
Alternate Name
Time Frame
Generally what is occurring?
5. Name the 5 signs of inflammation.
6. Name two causes of pain.
7. Explain why an injured area may be red and hot.
Unit SIX – Injury and Healing Process
1
Utah State Office of Education
Back Exercise Science/Sports Medicine
8. Explain the 4 processes that contribute to swelling.
9. Specifically, what is scar tissue?
10. What produces scar tissue?
11. What are adhesions and what can help prevent them?
12. Explain the relationship of scar tissue formation, Wolff’s Law, controlled motion, and how immobilization may adversely affect healing.
13. What is the end result of adhesions?
14. Fill in the following table in regards to injury classification. Injury Type
Explanation
Unit SIX – Injury and Healing Process
Signs and Symptoms
2
Utah State Office of Education
Back Exercise Science/Sports Medicine
Unit 6 – INJURY AND HEALING PROCESS Unit Worksheet - KEY Name __________________________________________ Period ____________ 1. Explain the different between acute and chronic injury. Acute – An injury that has a sudden onset. Chronic- An injury that occurs over time or due to ongoing repetition. 2. Give 2 examples of acute injury and 2 examples of chronic injury. Answers will be varied 3. The body’s normal response to injury is the definition of _Inflammation_____. 4. Fill in the following table: Phase Acute
Alternate Name Inflammatory
Time Frame 48-72 hours
Subacute
Repair and Regeneration
3-4 weeks
Remodling
Maturation
Up to 1 year
Generally what is occurring? Increase in blood flow. Cleaning of cellular debris. Signs of inflammation are apparent Generation of new blood vessels, fibroblasts begin to for collagen fibers Continued growth and strengthening of scar tissue (collagen)
5. Name the 5 signs of inflammation. Pain Redness Swelling Heat Loss of Function 6. Name two causes of pain. Stimulation of nerve fibers from original trauma Chemicals 7. Explain why an injured area may be red and hot. Occurs due to increased blood flow from vasodilation. Blood carries heat.
Unit SIX – Injury and Healing Process
3
Utah State Office of Education
Back Exercise Science/Sports Medicine
8. Explain the 4 processes that contribute to swelling. Broken blood vessels cause leaking of blood into extracellular compartment Leaking of intracellular fluid from damaged cells Vasodilation of blood vessels causes fluid to leak out of vessels Proteins in extracellular space draws fluid due to increase hydrostatic pressure 9. Specifically, what is scar tissue? Collagen fibers 10. What produces scar tissue? Fibroblasts 11. What are adhesions and what can help prevent them? An overgrowth of collagen and the contraction of collagen fibers that occurs from immobilization 12. Explain the relationship of scar tissue formation, Wolff’s Law, controlled motion, and how immobilization may adversely affect healing. Scar tissue is collagen which is the tissue the body uses to replace damaged tissues. While collagen is forming, controlled motion will dictate that the collagen will develop along the lines of stress and therefore the scar tissue will closely resemble the existing tissue. This is explained by Wolff’s Law – Tissues grow (and heal) according to the stresses placed upon them. 13. What is the end result of adhesions? Decreased Range of Motion 14. Fill in the following table in regards to injury classification. Injury Type 1st Degree
2
nd
Explanation The tissue is stretched causing micro tears
Signs and Symptoms Pain Minor swelling Loss of Function that may or may not interfere with activity
A partial tear
Moderate pain Moderate Swelling Loss of Function that will limit activity. Joint integrity and strength are affected Sever pain Moderate to Sever Swelling Complete loss of joint integrity and strength