PNF Quiz Flashcards
Isometric reversals
Develop a co-contraction around a joint
Develop ability to stabilize against a reversing force
Develop strength in a fixed part of ROM
Promote relaxation and pain reduction
Maintain muscle tone
PT doesn’t move. holds against changing forces
Hold-Relax:
use of isometric contraction to lengthen a muscle or muscle group in pattern
Purpose: to relax/lengthen muscles
Repeated quick stretch
good for…
Initiating motion
Midrange encourage movement and train against fatigue
Improve patient’s awareness of movement-re-direct motion
Increase AROM
Increase endurance
• Rythmic initiation-
Passive, Active assistive, Appropriate resistance. used to evaluate arc of motion, tone, and patient’s ability to complete the arc of movement
give pt a sense of the movement
relax the pt using a quiet voice
muscle re-education using successive induction-agonist/antagonist (contraction in one direction facilitates next contraction in opposite direction). Re-education is brought on my reciprocal motion
Isotonic reverals-
3rd of the 3 steps in rhythmic initiation-appropriate resistance both directions. AKA dynamic reversals in the book. Reciprocal pattern of Isotonic contractions (concentric) through arcs w/ appropriate resistance. Consistent resistance throughout the range. Use quick stretch as needed. Can do maintained isotonic or isometric at any point in the range. Good time to add traction if you are looking to increase motion. Can also try isometric hold at a point where the client has difficulty
Purpose: Facilitate coordinated reciprocal movemen. Improve smooth reversal of movement direction. Facilitate contraction of agonist/antagonist pairs. Prevent or relieve fatigue/increase endurance (lots of reps). Increase ROM
combination of isotonics
concentric, eccentric and maintained isotonic contractions in one direction of a given diagonal. • Purpose-Mimic ADLs-train pt to transition among all three types of contractions
• PT maintains resistance in the same direction while pt moves in both directions thru the arc
Learning sequence-
isolated movements at first that grow into and are integrated into full actions. A process of adding on. Works parts in isolation and as part of whole skill. Need repetition to promote motor memory. Need reciprocation for function
Motor learning
Feedback
Knowledge of results
Knowledge of performance
Tone of voice
Irradiation:
recruitment in one motor unit will influence other motor units to get involved.
Successive induction:
if contraction is going it will facilitate the next reciprocal contraction. Ie, when antagonis is contracted it will facilitate a successive reciprocal contraction of the agonist.
Reciprocal innervation/inhibition:
antagonist must relax hen the agonist is contracted.
Isotonic
Concentric-shorten
Eccentric-lengthen
Maintainaed isotonic=blocked isotonic
Isometric-
No movement. No change in length of the muscle. True isometric: “don’t let me move you”. Good for stabilizing
Patterns-
very specific pattern will strengthen a lot and prevent injury
9 Basic techniques-
things which qualify your treatment as being PNF
- Body position and body mechanics
- Manual contacts (lumbrical grip)
- Appropriate resistance (to the task)
- Verbal commands (appropriate to the task)
- Stretch-quick stretch: applying a quick stretch of tendon to get reflex contraction to initiate, redirect and sustain movement
- Traction (for mobility)/Approximation (for stability)
- Vision-to enhance movement, weight shift and rotation
- Timing, normal or timing for emphasis (uses maintained isotonic)-timing for emphasis: block movement of part of a pattern and continue to get irradiation to the part that needs facilitation. Can block proximal or distal to goal area.
- Pattern-stays within the pattern and will strengthen many muscles as well as prevent injury
