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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 |