maura Flashcards
NMES PNS or CNS
PNS
FES
functional electrical stimulation
FES purpose
helps activate functional activities such as walking or UE
low level current
Upper limb comfortable ranges FES
10-35 mAmps
LL: 10-60mAMPS
20-40hz
300 ms
increase mAmps slowly until a mm respose is seen but ____
current sufficient to depolarize the nerve
observe and ___ the mm while setting the current
palpate
use __ mode when sitting up current
continuous
why increase pulse duration
enhance mm response
anode repells __
k and NA
excitation occurs principally at
cathode
Rising Up range
0-6 s
why use longer rising ramps
for spastic antagonist
comfort
intial assessment
falling down ramp range
0-6s
why use slow ramp
prevent drop foot
FES symmetric when
stimulating single mm
FES asymmetric when
stimulating >1 mm (group of mm)
is asymmetric or symmetric more comfortable
sym
for perennials use
asymmetric (group)
is sym or asym better for discrete activation of small mm
sym
____ very effective for dropped foot stimulation
asymettric
how many hz FES
20-40
if sensory intolerance try __ frequency initially
higher
hertz affects
contraction
fatigue
comfort
keep contraction at __ of max voluntary contraction
50%
__ primary concern when using on and off
comfort
but GOAL is strong contraction w COMFORT`
factors affecting response to stimulation
electrode postition size parameters skin
