Electrical Stimulation and Muscle Contraction Flashcards
Muscle Re-education
prevents atrophy, helps a spasm relax and helps control edema
___________________ after surgery is the primary reason for using electrical stimulation for muscle re-education
muscle inhibition
arthrogenic muscle inhibition
when a muscle can’t contract, but it’s not a problem within the muscle, it’s a problem within the joint
- the joint and CNS are trying to protect you from further injury
Normal joint moves close to _____ degrees/seconds
1000
Estim can increase isokinetic strength at specific speeds
65 degrees/second
Only use ______ when patient is struggling to contract on their own
NMES
Muscle Re-education: Frequency
2500 to 5000 Hz
Muscle Re-education: Beat Frequency
30 to 60 pps
Muscle Re-education: Intensity
Visible muscle contraction
Muscle Re-education: Ramp
1:5 (20%) at first, then 1:3 (30%), then 1:2 (50%)
Muscle Re-education: Treatment time
15 to 20 minutes
Muscle Re-education: Electrode placement
bipolar - over motor points if possible
motor points
general area where the motor nerve generates the muscle; shoot for midline/mid belly of the muscle
Goal with e-stim is to break the ___________ cycle
pain-spasm-pain
E-stim for muscle spasm
induce a strong contraction to help break up a contraction or muscle spasm
goal is to induce involuntary _____ contraction
tetanic
Muscle Spasm Contraindications
acute injury
local instability - fracture
Muscle Spasm: Electrode placement
bipolar, traget motor points or trigger points
Muscle Spasm: Pulse rate
50 to 60 pps
Muscle Spasm: Intensity
visible (steady) contraction