Surface EMG and Biofeedback Flashcards
Clinical Electromyography
used to evaluate the scope of neuromuscular disease or trauma…as well as assist with establishing anticipated goals and expected outcomes
Types of EMG
nerve conduction velocity
electromyography
Kinesiological Electromyography
used to study muscle activity and establish the role of various muscles in specific activities
How is kinesiological primarily carried out?
Electromyography (primarily surface EMG
sEMG
can also be used as a kinesiological tool to examine muscle function during specific, purposeful tasks or therapeutic regimens
Biofeedback:
describe the use of instrumentation to make covert physiological processes more apparent to the patient.
Motor unit:
LMN and all muscle fibers it connects to
MUAP
motor unit AP
the electrical activity that comes with the depolarization of a single motor unit
CMUAP:
Combined Motor unit AP: the net (sum) of all depolarization (electrical activity) that comes when a patient voluntarily contracts a muscle to move
3 phases to any instrumentation that is used to sense and record any electrical activity of muscle:
Input phase
Processing phase
Display (feedback phase)
Best and most widely used electrodes?
silver-silver chloride
Kinds of electrodes:
reusable/permanent
single use/disposable
Permanent:
do not need gel: placed on clean skin and taped on
Single use
pre-gelled, self-adhesive
Recording electrodes:
2/3 electrodes are recording “active: ones that sense electrical activity