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PNF Basic Procedures for Facilitation Optimal Resistance (Series -2)

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Optimal Resistance

PNF Optimal Resistance

Therapeutic Goals
Resistance is used in treatment to:
Facilitate the ability of the muscle to contract.
Increase motor control and improve motor learning.
Help the patient gain an awareness of motion and its direction.
Increase strength.
Help the patient to relax the muscle (reciprocal

Most of the PNF techniques evolved from knowledge of the effects of resistance.

The intensity of resistance provided during an activity is dependent on the capabilities of the patient as well as on the goal of the activity. This we call optimal resistance.

The resistance for learning a functional activity like standing up from a sitting position or going down the stairs is mostly a guidance resistance to teach the patients to control these activities.
Resistance for irradiation or strengthening of muscles is intensive

when a muscle contraction is resisted, that muscle’s response to cortical stimulation increases. The active muscle tension produced by resistance is the most effective proprioceptive facilitation.

Proprioceptive reflexes from contracting muscles increase the response of synergistic muscles1 at the
same joint and associated synergists at neighboring joints.

How we give resistance depends on the kind of muscle contraction being resisted.

We define the types of muscle contraction as follows International PNF Association
Isotonic (dynamic): The intent of the patient is to produce motion.
Concentric: Shortening of the agonist produces motion.
Eccentric: An outside force, gravity or resistance, produces the motion. The motion is restrained by the controlled lengthening of the agonist.
Stabilizing isotonic: The intent of the patient is motion; the motion is prevented by an outside force (usually resistance).
Isometric (static): The intent of both the patient and the therapist is that no motion occurs.

The resistance to concentric or eccentric muscle contractions should be adjusted so that motion can
occur in a smooth and coordinated manner. The antagonists of the facilitated muscles allow a coordinated activity and therefore they are sufficiently inhibited to allow that activity.

Resistance to a stabilizing contraction must be controlled to maintain the stabilized position. When resisting an isometric contraction, the resistance should be increased and decreased gradually so that no motion occurs. It is important that the resistance does not cause pain, unwanted fatigue, or unwanted irradiation in the wrong direction or into an undesired part of the body.

Both the therapist and the patient should avoid breath-holding. Timed and controlled inhalations and exhalations can increase the patient’s strength and active range of motion

Dr .Lalit Choudhary
Hii everyone, I'm Dr Lalit Choudhary PT. Born and brought up in delhi. Practicing as a professional PHYSIOTHERAPIST. As a therapist I love to interact with others and and get myself updated regarding all the social issues which are leading my countrymen to distress themselves. Yes, I agree that Iam a workaholic but my work gives me immense pleasure but there are sometimes when I feel stressed up so to relax myself I travel to new places, meet new people and try to adopt their culture. Most of the time I like to travel hills as it helps me to relax and enjoy our nature beauty. For being a good therapist and to deal with all the difficulties I always prefer to be good listener and have good patience that is what my strength is. I also work as a social worker and the Founder of thesocialphysiofitnessclub and PHYSIO FIT INDIA. In last I just want to say that " I believe that physical therapy is not just a therapy but actually a remedy which not only make you physically fit but also adds happiness, joy and more days to your life." So don't just sit and thought now it's time to stand and work on yourself.

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