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PNF STRETCHING. Shantanu Sharma MPT Sports Ist Yr. IMPORTANT TERMS. Flexibility Stretching PNF. FLEXIBILITY. Ability to move a single joint or a series of joints through a complete, unrestricted and pain-free ROM Essential to prevent injuries and maintain function. STRETCHING.
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PNF STRETCHING Shantanu Sharma MPT Sports Ist Yr
IMPORTANT TERMS Flexibility Stretching PNF
FLEXIBILITY Ability to move a single joint or a series of joints through a complete, unrestricted and pain-free ROM Essential to prevent injuries and maintain function
STRETCHING Any therapeutic maneuver to lengthen shortened soft tissues Agonist: Muscle opposite to the tight muscle Antagonist: Tight muscle
MECHANISM Sustained stretch => sarcomeres added in series Quick stretch => stretch reflex
PNF STRETCHING Help in relaxing only the muscles and not other connective tissue…ligaments, capsules etc. Only possible if the muscle to be stretched is normally innervated and under voluntary control Sarcomere give will occur more easily when the muscle is relaxed
TECHNIQUES Antagonist Contract Relax Hold Relax Agonist Agonist Contraction Hold Relax with Agonist Contraction
PROCEDURE Contract Relax Take limb passively or resist movement of the limb to the limit of ROM Change grip to resist active movement of tight muscle Active contraction of tight muscle in a short range Patient relaxes and limb taken further into the limited range
2. Hold Relax Take the limb to the limit of ROM Change grip to resist tight muscle Resisted isometric contraction of tight muscle Patient relaxes and limb taken further into the range
3. Agonist Contraction Take the limb to end range Resisted isometric contraction of muscle opposite to the tight muscle Patient relaxes and limb taken further into the range
4. Hold Relax with Agonist Contraction Also called Slow Reversal Hold Relax Prestretch isometric contraction of tight muscle and its relaxation Followed by concentric contraction of the opposite muscle Uses both reciprocal and autogenic inhibition
MECHANISM OF PNF STRETCHING Stretching of muscle => muscle spindle stretched => Reflex contraction of muscle Longer stretch => GTO stimulated => relaxation of muscle Autogenic Inhibition: Prestretch contraction => relaxation by stimulation of GTO Reciprocal Inhibition: Contraction of agonist => relaxation of antagonist
PERFORMANCE Hamstrings Biceps Triceps Gastro-soleus Ilio-psoas Hip Adductors
REFERENCES Therapeutic Exercise: Foundations and Techniques- Carolyn Kisner and Lynn Allen Colby Rehabilitation Techniques in Sports Medicine- William E Prentice Practical Exercise Therapy- Margaret Hollis and Phyl Fletcher Cook Wikipedia Review of Medical Physiology- William F Ganong
PNF stretching training tips-Carmine Grieco: American Fitness Journal, July-August 2002 Reciprocal inhibition, successive induction, autogenic inhibition or stretch perception alteration-Ulrike Mitchell, J William, J Hopkins, Sterling Hilton: Medicine and Science in Sports and Exercise, May 2006 PNF techniques in sports medicine- Paul Surburg, John Schrader: December 1993
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