Muscle Energy Technique in Physical Therapy
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Questions and Answers

What happens when the muscle contracts and the GTO is activated?

  • It strengthens the contraction
  • It responds by inhibiting the contraction (correct)
  • It has no effect on the contraction
  • It causes the muscle to relax
  • What is the location of the muscle spindle?

  • Within the muscle belly (correct)
  • Outside the muscle belly
  • At the muscle-tendon junction
  • In the antagonist muscle
  • What is the effect of Post Isometric Relaxation (PIR) on muscle tone?

  • It fluctuates muscle tone
  • It has no effect on muscle tone
  • It decreases muscle tone (correct)
  • It increases muscle tone
  • What is the percentage of contraction required for Post Isometric Relaxation (PIR)?

    <p>10-20%</p> Signup and view all the answers

    What is the main difference between Post Isometric Relaxation (PIR) and Post Facilitation Stretch (PFS)?

    <p>PFS is more aggressive than PIR</p> Signup and view all the answers

    Who developed the technique of Post Isometric Relaxation (PIR)?

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

    What happens to the antagonist muscle when the muscle spindle is activated?

    <p>It relaxes</p> Signup and view all the answers

    What is the purpose of taking the hypertonic muscle to a length just short of pain in Post Isometric Relaxation (PIR)?

    <p>To find the point of resistance</p> Signup and view all the answers

    Who developed the Muscle Energy Technique (MET) in 1948?

    <p>Fred Mitchell</p> Signup and view all the answers

    What is the primary goal of Muscle Energy Technique (MET)?

    <p>To relax the muscles and lengthen the muscle</p> Signup and view all the answers

    What is the type of contraction used in Muscle Energy Technique (MET)?

    <p>Isometric contraction</p> Signup and view all the answers

    What is the role of the Golgi tendon organ (GTO) in Muscle Energy Technique (MET)?

    <p>Senses muscle tension</p> Signup and view all the answers

    What is Reciprocal Inhibition MET?

    <p>A sub-maximal contraction of a muscle followed by stretching of the opposite muscle</p> Signup and view all the answers

    What is the difference between Muscle Energy Technique (MET) and static stretching?

    <p>MET is active, while static stretching is passive</p> Signup and view all the answers

    What is the role of the muscle spindle in Muscle Energy Technique (MET)?

    <p>Helps in managing muscular control and coordination</p> Signup and view all the answers

    What is the purpose of Muscle Energy Techniques (METs)?

    <p>To improve the function of the musculoskeletal system and reduce pain</p> Signup and view all the answers

    What is the initial state of the hypertonic and shortened muscle in the PFS technique?

    <p>Between a fully stretched and a fully relaxed state</p> Signup and view all the answers

    What happens to the patient's effort in the PFS technique after 5-10 seconds of contraction?

    <p>The patient relaxes and releases the effort</p> Signup and view all the answers

    What is the primary concept behind Reciprocal Inhibition MET?

    <p>Reciprocal Inhibition</p> Signup and view all the answers

    What is the position of the affected muscle in the Reciprocal Inhibition MET technique?

    <p>Mid-range position</p> Signup and view all the answers

    What is one of the indications of MET techniques?

    <p>Lengthening a shortened, contractured, or spastic muscle</p> Signup and view all the answers

    What is a contraindication of MET techniques?

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

    What is the purpose of the therapist's resistance in the Reciprocal Inhibition MET technique?

    <p>To completely resist the patient's effort</p> Signup and view all the answers

    How many times is the procedure typically repeated in the PFS technique?

    <p>Between three to five times</p> Signup and view all the answers

    Study Notes

    Muscle Energy Technique (MET)

    • Developed by Fred Mitchell in 1948
    • A form of manual therapy that uses gentle isometric contractions to relax muscles and lengthen them
    • Active technique, where the patient is an active participant

    Principles of MET

    • Based on Autogenic Inhibition and Reciprocal Inhibition
    • Autogenic Inhibition: relaxation of a muscle after a sub-maximal contraction
    • Reciprocal Inhibition: contraction of one muscle followed by stretching of the opposite muscle

    Types of MET

    • Autogenic Inhibition MET:
      • Post Isometric Relaxation (PIR)
      • Post Facilitation Stretching (PFS)
    • Reciprocal Inhibition MET:
      • Contraction of one muscle followed by stretching of the opposite muscle

    Post Isometric Relaxation (PIR)

    • Developed by Karel Lewitt
    • Technique to decrease muscle tone after a brief period of submaximal isometric contraction
    • Works on the concept of autogenic inhibition
    • Steps:
      • Take the hypertonic muscle to a length just short of pain
      • Perform a sub-maximal contraction away from the barrier for 5-10 seconds
      • Relax and exhale, then apply a gentle stretch to take up the slack till the new barrier

    Post Facilitation Stretch (PFS)

    • Developed by Janda
    • Technique based on autogenic inhibition
    • Steps:
      • Place the hypertonic and shortened muscle between a fully stretched and a fully relaxed state
      • Contract the agonist using maximum effort for 5-10 seconds
      • Relax and release the effort, then apply a rapid stretch to a new barrier and hold for 10 seconds

    Reciprocal Inhibition MET

    • Different from PIR and PFS in that it involves the contraction of one muscle followed by stretching of the opposite muscle
    • Steps:
      • Place the affected muscle in a mid-range position
      • Push towards the restriction/barrier while the therapist resists (isometric) or allows movement (isotonic)
      • Relax and exhale, then apply a passive stretch to the new barrier

    Indications and Contraindications

    • Indications:
      • Lengthen a shortened, contractured, or spastic muscle
      • Reduce pain
      • Stretch tight fascia
      • Reduce localized edema
      • Enhance proprioception and motor control
      • Improve local circulation
      • Guard against future injuries
    • Contraindications:
      • Fracture
      • Tendon ruptures
      • Muscle Inflammation
      • Acute sprains
      • Acute strains
      • Dislocations
    • Precautions:
      • Osteoporosis
      • Hypermobility

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    Description

    Learn about Muscle Energy Technique, a manual therapy developed by Fred Mitchell in 1948, which uses gentle isometric contractions to relax muscles. Compare it with static stretching and understand its benefits.

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