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Therex final
PNF
Question | Answer |
---|---|
proprio | Receiving stimuli in muscles, tendons, and joint capsules |
neuro | innervation of muscles |
facilitation | Enhancement or reinforcement |
purpose of PNF | promoting or hastening the response of the neuromuscular mechanism through stimulation of the proprioceptors |
what was PNF's original purpose? | to help polio patients |
what belief is PNF based off of? | that using natural patterns of mvmt would stimulate the CNS more normally than they would with therapy isolated to each individual muscle |
PNF uses functionally based ____ patterns | diagonal |
sensory cues for PNF | - Proprioceptive - Cutaneous (manual contacts) - Visual: "Look at your hand" - Auditory: "Pull up and across your face" |
stages of motor control | mobility, stability, controlled mobility, skill |
mobility | Capability for movement, ROM necessary to assume a posture and the ability to move in and out of it |
stability | Ability to maintain a position or posture |
controlled mobility | movement within a posture with the distal component fixed. It is progressed by freeing up one distal component to move on the proximal segment. Closed chain WB |
Skill | Distal segment is free to move and manipulate while the proximal segment provides dynamic stability |
patterns of motion are characteristic of ____ | normal motor activity |
patterns of motion are ___ movements with a ____ component | diagonal, rotational |
what alignment do patterns of motion follow? | alignment of muscles from origin to insertion |
patterns are ____ to each other | antagonistic |
how are patterns named? | diagonal 1, diagonal 2, plus flexion or extension and upper or lower extremity- [D1 fl. (R)UE] or D1 ext.of (L) LE |
what motions can patterns include? | - Flexion and extension - Adduction and abduction - Rotation - Applied to extremities and trunk |
PNF concept regions | Upper extremity, Lower extremity, Head & neck, Trunk, Scapular |
types of PNF patterns | - Unilateral - Bilateral (Symmetrical, Asymmetrical) - Reciprocal |
goals of PNF | - Pain relief - Initiate movement - Improve endurance - Enhance stability and mobility - Strengthen muscle groups - Stretch muscle groups - Improve posture, balance, and coordination |
contraindications for PNF | - Inflammatory arthritis - Cancer - Bone disease - Fractures - Early stages of healing with soft tissue damage |
PNF uses ____ as a facilitating mechanism | pressure |
where should pressure be applied for PNF? | to the skin overlying the muscle group responsible for the motion |
how should you apply pressure for PNF? | - Palm, thenar/hypothenar eminences and finger pads (not tips) (no pain) - Facilitate the contraction in the correct direction |
how to facilitate contraction in the correct direction | place your hands on the surface which faces directly into the line of movement desired |
where should you position your body for PNF | at either end of desired motion, hips and shoulders facing the direction of the movement |
Forearms must always be pointed what way for PNF? | in the direction of the desired movement |
what tone of voice should you use to facilitate a maximal response? | Strong, sharp commands |
what tone of voice should you use to facilitate relaxation or if a motion is painful? | soft tones |
preparatory commands | explanations of the mvmt patterns and expectations |
action commands | directions on how to perform the activity, "pull" "hold" |
isotonic contractions are used for ___ | mobility |
isometric contractions occur when ___ | stabilizing |
Combo of isotonic and isometric used for ____ ____ | functional activities |
timing for PNF for normal development | proximal before distal |
timing for PNF for normal activity | distal to proximal |
Use _____muscles to facilitate activity in _____ muscles | stronger, weaker |
irradiation/ overflow | spreading of muscular response from one muscle group to another by altering the emphasis on resistance |
when is quick stretch applied? | Performed prior to pattern, mm must be in fully elongated position |
purpose of quick stretch | Initiate voluntary motion, i.e., stretch reflex, Increase strength, Initiate quicker response |
what do you need to do immediately after quick stretch? | follow with appropriate resistance |
when is quick stretch contraindicated? | during early stages of tissue healing |
autogenic inhibition | the ability of a mm to relax when it is experiences a stretch or increased tension |
where does autogenic inhibition occur? | in the same mm |
importance of autogenic inhibtion | prevents the mm and tendon from experiencing extreme tension (uses GTO's) |
in autogenic inhibition, you will ____ the target mm | stretch |
after you stretch the target mm, you need to ____ the target mm in order for ____ to be excited and for autogenic inhibition to occur | contract, GTO's |
reciprocal inhibition | the relaxation of mm on one side of a joint to accommodate contraction on the other side of the that joint (uses mm spindles) |
where does reciprocal inhibition occur? | occurs in the opposite mm or the antagonist mm |
in reciprocal inhibition, you must contract the ___ mm, this will allow the ____ to send information to the spinal cord for reciprocal inhibition and increased stretch to occur | opposite, mm spindles |
rhythmic initiation technique | Therapist moves the limb passively thru ROM several times and then asks pt to assist |
why would you use rhythmic initiation technique | used to teach the pattern, used when pt is unable to initiate mvmt or has profound weakness and tone |
slow reversal technique | Isotonic contraction of agonist immediately followed by isotonic contraction of antagonist |
when would you use slow reversal technique | used to teach an activity, when a pt has weakness, decreased initiation or increased tone |
repeated contraction technique | Repeated, dynamic contractions initiated by quick stretches followed by resistance at any point in the range |
why would you use repeated contraction technique | to help pt get through areas of weakness or pain in the motion |
alternating isometrics | isometric contractions performed alternating from muscles on one side of joint to the other side w/o rest (stability) |
purpose of alternating isometrics | Improve strength/stability of postural muscles or hip/shoulder girdle |
rhythmic stabilization | Multi-directional resistance with manual contacts on opposite sides of the body |
purpose of rhythmic stabilization | Progression of AI - Promotes stability thru co-contraction of proximal stability muscles |
hold relax | Move limb to the point of limitation, Strong, isometric contraction of the antagonists (the "hold"), Relax and stretch to new end range actively or passively |
what is hold relax incorrectly called? | contract relax |
contract relax | Move limb to the point of limitation, **Isotonic contraction of the rotatory antagonists with simultaneous, strong, isometric contraction of the antagonists**, Relax and stretch to new end range actively or passively |
Hold relax vs contract relax | contract relax allows rotation component to motion |
traction | Facilitates movement, Associated with flexion ("pull") movements |
approximation | Facilitates stability and con-contractions, Associated with extension ("push") mvmts |
D1 UE flexion starting position | - Shoulder extension, ABduction, IR - Elbow extension - Forearm pronation - Wrist & finger EXTENSION - Approximately 8" from hip |
D1 UE flexion hand placement and commands | - Index & middle fingers in palm of patient's opposite hand -"Squeeze my fingers, turn it, bring it up and across your face" |
D1 UE extension starting position | - Shoulder flexion, ADDuction, ER - Elbow flexion (partial) - Forearm supination - Wrist & finger FLEXION |
D1 UE extension hand placement and command | - Contact dorsal hand & fingers - Contact dorsal elbow near triceps - "Open your hand, turn it, push your arm down and out" |
D2 UE flexion starting position | - Shoulder extension, ADDuction, IR - Elbow extension - Forearm pronation - Wrist & finger FLEXION - Hand approximately over umbilicus (take out sword) |
D2 UE flexion hand placement and command | - Cross arm placement - Contact dorsal hand & fingers - Contact dorsal forearm - "Open your hand, lift your up and out" |
D2 UE extension starting position | - Shoulder flexion, ABduction, ER - Elbow extension - Forearm supination - Wrist & finger EXTENSION |
D2 UE extension hand placement and command | - Cross-arm - Index & middle fingers in palm of patient's opposite hand - Palmar forearm - "Squeeze my fingers, pull down and across chest |
starting position for D1 flexion lower extremity | Hip ext, abduction, IR, ankle PF, foot eversion, toe flexion |
end position for DI flexion LE | Hip flexion, adduction, ER, ankle DF, foot inversion, toe extension |
starting position for D2 flexion LE | Hip ext, adduction, ER, ankle PF, Foot inversion, toe flexion |
ending position for D2 flexion LE | Hip flexion, abduction, IR, ankle DF, foot eversion, toe extension |
1 rep of PNF is sufficient to gain how much motion? | 3° to 9° |
how many times per week should PNF be used? | 1-2 |
how long should you hold static contraction of the tight mm? | 3-15 seconds |
what % maximum voluntary contraction (MVC) is sufficient to gain ROM | 20 |
what is used to place the tight mm on a stretch? | shortening contraction of opposite mm |
stretching should be ___ velocity | low |