sport injuries physiological resposes (muscle strain)
Post on 22-Nov-2014
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Sport Injuries
Physiological Responses
Muscle Strain
Aims
Understand the common physiological
responses to injuries
Objectives
All students will be able to list some (all) of
the physiological responses to a muscle
strain
Some students will be able to explain the
physiological responses to a muscle strain
IntroductionPhysiological responses to injury
“An adjustment within cells, or
tissues, in response to an
environmental stimulus resulting
in an improved ability to cope
with the changing environment”
Muscle fibres
Grade 1 strain
Grade 3 strain
Group Task
• In small groups reflect and identify the physiological responses as a result of a grade 3 muscle strain
• Think how does the body adapt and cope with the trauma
Construction of blood
Primary phase of healingBlood Clotting
Vessel constricts
Platelets activate
Internalbleeding
Bleeding stops
Fibrin clotto vessel surface
Activated platelets among a red blood cell
Healing process
• Absorption of swelling
• Removal of dead tissue
• Growth of new blood capillaries
• Development of fibrous tissue (scar tissue)
Individual task
• Complete the table in your own words describing the physiological responses to a grade 3 muscle strain
Summary
Primary responses:BleedingPlatelets activatedFibrin released
Healing process:Reduce swellingGrowth of
capillariesScar tissue
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