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Questions and Answers
What is the first step in Lewit's postisometric relaxation method?
In Janda’s postfacilitation stretch method, how long should the isometric contraction be held?
What distinguishes reciprocal inhibition from other muscle energy techniques?
Which of the following steps is part of the strengthening variation?
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What is the primary purpose of the reciprocal inhibition variation?
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During which step of Lewit’s method is the muscle taken to a new barrier?
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What is the key feature of isokinetic contraction in the strengthening variation?
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How often should Janda’s postfacilitation stretch method be repeated?
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Study Notes
Muscle Energy Techniques (MET)
- Muscle Energy Techniques (MET) are a type of manual therapy used to improve muscle flexibility and range of motion.
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MET variations:
- Lewit’s Postisometric Relaxation Method
- Janda’s Postfacilitation Stretch Method
- Reciprocal Inhibition Variation
- Strengthening Variation
Lewit’s Postisometric Relaxation Method
- Goal: Reduce muscle hypertonicity.
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Procedure:
- Identify the barrier point: The point where resistance to movement is first felt.
- Isometric contraction: The hypertonic muscle is contracted isometrically away from the barrier point (agonist muscle).
- Minimal effort: The contraction should be minimal, about 20% of the patient's available strength.
- Exhale and relax: The patient is instructed to exhale and relax completely.
- New barrier: The muscle is taken to a new barrier with all slack removed but no stretch.
- Repeat: The procedure is repeated two or three times.
Janda’s Postfacilitation Stretch Method
- Goal: Increase muscle flexibility and range of motion.
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Procedure:
- Mid-range position: The shortened muscle is placed in a mid-range position.
- Isometric contraction: The muscle is contracted isometrically with maximum effort for 5-10 seconds while resisted.
- Rapid stretch: On release of the isometric contraction, a rapid stretch is made to a new barrier.
- Hold and relax: The stretch is held for at least 10 seconds, followed by relaxation for 20 seconds.
- Repeat: The procedure is repeated 3 to 5 times.
Reciprocal Inhibition Variation
- Goal: Reduce muscle hypertonicity, particularly in acute settings.
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Procedure:
- Mid-range position: The muscle is placed in a mid-range position.
- Antagonist contraction: Contraction of the antagonist muscle (not the hypertonic one) is used. This can be isometric or isotonic.
- Passive lengthening: On ceasing the antagonist contraction, the patient inhales and exhales fully, at which time the muscle is passively lengthened.
Strengthening Variation
- Goal: Improve muscle strength.
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Procedure:
- Progressive Resisted Exercise: Uses isokinetic contractions
- Find Weak Areas: Identify areas of weakness within the full range of movement.
- Progressive Contractions: The patient starts with a weak effort and gradually progresses to a maximal contraction of the affected muscle(s).
- Benefits: This variation aids in strengthening weak musculature in areas of limited mobility.
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Description
This quiz focuses on Muscle Energy Techniques (MET), a manual therapy aimed at enhancing muscle flexibility and range of motion. It covers various methods, including Lewit’s Postisometric Relaxation Method, and outlines the procedure involved in achieving reduced muscle hypertonicity. Test your understanding of these important therapeutic techniques.
