Physiology of Cryotherapy
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Questions and Answers

What is the effect of cryotherapy on gamma motor neuron activity?

  • It decreases the force of muscle contraction (correct)
  • It increases the force of muscle contraction
  • It has no effect on muscle contraction
  • It is variable and dependent on the individual

    • What is the primary benefit of cryotherapy in inflammatory joint diseases?

  • Prevention of collagen destruction (correct)
  • Reduction of inflammation
  • Enhancement of muscle contraction
  • Increase in metabolic rate

    • What is the typical response to cryotherapy after 15-30 minutes of application?

  • Intense cold sensation
  • Burning or deep aching sensation
  • Analgesia and numbness (correct)
  • Local anaesthesia to analgesia

    • What is the primary goal of cryotherapy in edema management?

    <p>To reduce inflammation and control bleeding</p> Signup and view all the answers

    What is the correct sequence of sensations in response to cryotherapy?

    <p>Intense cold, burning, local anaesthesia, analgesia</p> Signup and view all the answers

    When should cryotherapy be discontinued in inflammation control?

    <p>When the local temperature returns to normal</p> Signup and view all the answers

    What is the primary goal of applying cryotherapy within the first 5 minutes after trauma?

    <p>To control bleeding and edema</p> Signup and view all the answers

    What is the recommended treatment time for cryotherapy when controlling inflammation?

    <p>15 minutes or less</p> Signup and view all the answers

    What is the main objective of the RICE method in the first 48-72 hours after an injury?

    <p>To reduce inflammation and edema</p> Signup and view all the answers

    What is the effect of cryotherapy on blood flow?

    <p>It decreases blood flow</p> Signup and view all the answers

    What is the benefit of intermittent compression and continuous ice water therapy for inflammation control?

    <p>It is more effective than intermittent cold pack therapy</p> Signup and view all the answers

    What is a potential contraindication of prolonged cryotherapy?

    <p>It promotes vasodilation</p> Signup and view all the answers

    What is the purpose of cryotherapy in edema management?

    <p>Decrease edema and swelling</p> Signup and view all the answers

    Which of the following is a physiological effect of cold on the neuromuscular system?

    <p>Increased pain threshold</p> Signup and view all the answers

    What is the primary mode of heat transfer in hydrotherapy applications?

    <p>Convection</p> Signup and view all the answers

    What is the term for the phenomenon where blood flow initially decreases and then increases after 20-30 minutes of continuous cold application?

    <p>Cold-induced vasodilation (CIVD)</p> Signup and view all the answers

    What is the primary benefit of cryotherapy in pain control?

    <p>Decrease pain sensation</p> Signup and view all the answers

    What is the primary method of heat transfer in ice packs and cold packs?

    <p>Conduction</p> Signup and view all the answers

    What is the mechanism by which cold therapy reduces pain sensation?

    <p>Gate control mechanism</p> Signup and view all the answers

    What is the effect of cold therapy on nerve conduction velocity?

    <p>It decreases in proportion to the degree of temperature change</p> Signup and view all the answers

    What is the effect of brief cooling on isometric muscle strength?

    <p>It increases directly after cooling</p> Signup and view all the answers

    What is the mechanism by which cold therapy reduces edema formation?

    <p>Reducing blood flow to the affected area</p> Signup and view all the answers

    What is the effect of cryotherapy on alpha motor neuron activity?

    <p>It facilitates alpha motor neuron activity</p> Signup and view all the answers

    What is the importance of RICE method in the first 48-72 hours after an injury?

    <p>To reduce pain and inflammation</p> Signup and view all the answers

    What is the primary mechanism by which cryotherapy reduces pain in the acute phase?

    <p>Slowing nerve conduction and activating the gate control theory</p> Signup and view all the answers

    Which of the following is a clinical aim of cryotherapy in the acute phase of injury?

    <p>To control pain</p> Signup and view all the answers

    How does cryotherapy reduce muscle spasm and pain?

    <p>By reducing muscle temperature and indirectly reducing muscle spasm</p> Signup and view all the answers

    What is the effect of cryotherapy on deep tendon reflexes in patients with upper motor neuron dysfunctions?

    <p>A temporary decrease in deep tendon reflexes</p> Signup and view all the answers

    What is the recommended duration of cold application to control pain for 1 or more hours?

    <p>10-15 minutes</p> Signup and view all the answers

    Which of the following is a modification of cryotherapy used to reduce spasticity in patients with upper motor neuron dysfunctions?

    <p>Longer applications of 10-30 minutes</p> Signup and view all the answers

    What is the primary aim of edema management in the first 7 days?

    <p>To control extraarticular swelling and quickly resolve intraarticular swelling</p> Signup and view all the answers

    What is the recommended timing for cryotherapy application in edema management?

    <p>As soon as possible after acute trauma</p> Signup and view all the answers

    What is the effect of cryotherapy on blood flow?

    <p>Decreases blood flow via vasoconstriction</p> Signup and view all the answers

    What is the benefit of combining elevation and compression in edema management?

    <p>Improves circulation and lymphatic drainage</p> Signup and view all the answers

    What is a contraindication for cryotherapy in edema management?

    <p>Poor circulation</p> Signup and view all the answers

    What is the mechanism of action of cryotherapy in edema management?

    <p>Reduces capillary permeability</p> Signup and view all the answers

    What is the primary benefit of the RICE method in the first 48-72 hours after an injury?

    <p>Minimizes edema formation</p> Signup and view all the answers

    What is the effect of cryotherapy on edema formation?

    <p>Minimizes edema formation</p> Signup and view all the answers

    What is the primary goal of muscle pump and soft tissue massage in edema management?

    <p>To improve circulation and lymphatic drainage</p> Signup and view all the answers

    What is a sign of edema?

    <p>Pitting edema and swelling</p> Signup and view all the answers

    Study Notes

    Effects of Cold

    • Decreased tissular temperature and metabolism
    • Decreased blood flow, leading to:
      • Decreased edema and swelling
      • Decreased pain and muscle spasm
    • Physiological effects of cold:
      • Hemodynamic effects: initial decrease in blood flow, later increase in blood flow
      • Neuromuscular effects:
        • Decreased nerve conduction velocity
        • Decreased temporal spasticity
        • Increased pain threshold and decreased pain sensation
      • Metabolic effects: decreased metabolic rate

    Metabolic Effects of Cold

    • Decreased metabolic rate
    • Cryotherapy can be used to control acute inflammation
    • Decreased activity of cartilage-degrading enzymes

    Sensations in Response to Cryotherapy

    • Intense cold (within 3 minutes of application)
    • Burning/deep aching (from 4-7 minutes of application)
    • Local anesthesia to analgesia (from 8-15 minutes of application)
    • Analgesia and numbness (after 15-30 minutes of application)

    Cryotherapy Uses

    • Inflammation control
    • Edema control
    • Pain control
    • Modification of spasticity

    Inflammation Control

    • Cryotherapy can be used to control acute inflammation
    • Must be applied as soon as possible after trauma (within 5 minutes)
    • Limited to 15 minutes or less to avoid vasodilation and increased circulation

    Clinical Problem: Inflammation

    • Signs and symptoms: 5 cardinal signs
    • Timing: Acute phase (first 72 hours after injury)
    • Clinical aim: To limit the extent of inflammation
    • Intervention and mechanism of action:
      • Ice: decreases metabolic rate and reduces blood flow
      • Contrast baths: effective in distal part of extremities
      • RICE method: most effective in the first 48-72 hours after injury

    Pain Control

    • Cryotherapy can control pain
    • Immediate effect: gate control theory
    • Prolonged alleviation of pain: reduced muscle-spasm-pain cycle, indirectly reducing edema and swelling that causes pain

    Modification of Spasticity

    • Cryotherapy can be used to reduce spasticity temporarily in patients with upper motor neuron dysfunctions
    • Brief applications (5 minutes) cause an immediate decrease in deep tendon reflexes
    • Longer applications (10-30 minutes) decrease and eliminate clonus and the decrease of muscles for passive stretch

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    Related Documents

    Cryotherapy 1 PDF

    Description

    Learn about the effects of cold on the body, including its impact on muscle contraction, metabolic rate, and inflammation. Discover how cryotherapy can be used to manage acute inflammation and joint diseases.

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