PARAMETERS Flashcards
what is the pulse duration for the motor neuron on the strength duration curve?
200-600 msec
what frequency is needed between to illicit a strong muscle contraction?
45-50 pps
50 is sweet spot = tetany
what are the parameters for conventions tens?
frequency: 80-125 pps
pulse duration: 75-150 microsec
(*100-100)
what are the parameters for low-rate tens or motor-level tens?
frequency: <20 pps
pulse duration: 100-600 microsec
what are the parameters for noxious-level tens?
frequencies: 1-5 pps
duty: 30-45 sec on
visible muscle contraction
what are the parameters for brief intense tens?
frequency: 100 pps
duration: 100-600 microsec
visible muscle contraction
what is the time set to for IFC and pre-mod?
5 mins
what is the frequency set on for IFC and premod?
“high”
what is the range of pulse frequencies for NMES?
35-80 pps
which muscle fibers are activate 1st: fast or slow twitch?
fast
what are the parameters for NMES?
frequency: 35-80 pps
pulse duration: 200-600 microsec
intensity: until strong muscle contraction
the longer the pulse duration, the ____ the amount of current needed to reach tetany
lower
what is the duty frequency for NMES for strengthening?
1:5 - on:off
10 sec on, 15 sec off
what is the duty frequency for NMES for re-ed?
1:1 (5 sec on, 10 sec off)
what are the ramp up recommendations for NMES?
strengthening: 2s
edema: 1s
re-ed: none
contra indications for estim
pacemakers or auto defib
thru chest or near heart
over carotid sinus
venous or arterial thrombus
occlusive vascular disease
infection
over open wounds, osteomyelitis, scars, skin lesions, radiation, metal implants
malignancies
pregnancy
MKS probs where mm contract exacerbates the condition
high level SCI
what are the parameters for Russian?
frequency: 2,000-10,000 Hz
pulse duration: 50-250 microsec
what are the duty recommendations for Russian?
contraction/pump: 50 on, 10 off
post-op/neuro re-ed: 10 on, 50 off
for NMES, one of the electrodes is always placed over the
motor point
for NMES, the other electrode should be placed ___ to direction of the muscle fibers and does not necessarily need to be over a motor point
parallel
what are the US settings for a deep subacute injury?
1 MHz
intensity = 1 W/cm2
temp/min = 0.2
5 mins
what are the US settings for a superficial subacute injury?
3 MHz
intensity = 0.5 W/cm2
temp/min = 0.3
3.3 minutes
what are the US settings for a superficial chronic injury?
3 MHz
intensity = 0.5 W/cm2
temp/min = 0.3
6.67 minutes
what are the US settings for a deep chronic injury?
1 W/cm2, 0.2 temp/min, 10 mins
1.5 W/cm2, 0.3 temp/min, 6.67 mins
2 W/cm2, 0.4 temp/min, 5 mins
what are the US settings for a superficial contracture?
3 MHz
intensity = 1 W/cm2
temp/min = 0.6
6.67 mins
what are the US settings for a deep contracture?
1 MHz
intensity = 2 W/cm2
temp/min = 0.4
10 mins
