general knowledge - ESTIM

Question 1

monophasic

Answer 1

current flows in one direction - leaves a charge in the tissue

polar effects

Question 2

bi phasic

Answer 2

current flows in two directions - no net charge

Question 3

continuous current

Answer 3

has neuromuscular effect - excites on a little at start and stop

Question 4

pulse duration =

Answer 4

width

Question 5

pulse amp =

Answer 5

intensity

Question 6

pusle rate =

Answer 6

freq

Question 7

negative up or down

Answer 7

up

Question 8

positive up or down

Answer 8

down

Question 9

what is a pulse

Answer 9

an electric event separated from the next sam electric event

Question 10

what does phase mean

Answer 10

current flow in one direction

Question 11

increased pulse duration leads to what

Answer 11

increased recruitment of nerve fibers of smaller sizes - more motor units recruited

more current - more likely to feel stim

Question 12

increase pulse amp

Answer 12

increases the depth of stimulus - more motor unit recruited, more motor nerve fibers of the same size

Question 13

rate (freq) increases

Answer 13

the firing rate of the nerve increases

greater muscle fatigue

more motor unit are fired more freq

Question 14

muscle twitch - rate

Answer 14

1 - 10 pps

Question 15

what is unfused tetany

Answer 15

when the muscle fibers do not completely relax before the next stimulus because they are being stimulated at a fast rate

Question 16

what is tetanic contraction

Answer 16

a sustained muscle contraction evoked when the motor nerve that innervates a skeletal muscle emits action potentials at a very high rate.

Question 17

unfused tetany - rate

Answer 17

10-30 pps

Question 18

tetanic contraction - rate

Answer 18

greater than or equal to 30

Question 19

what happens to muscle force when more motor unit are recruited

Answer 19

more force is created

Question 20

spacing

Answer 20

greater spacing the deeper tissues we get to

Question 21

electro therapy contraindications

Answer 21

DVT
hemmorahagic condition
over pregnant uterus
regenerating nerves
damaged skin (or at risk)
infection
malignancy
recently radiated tissue
impaired sensation
implanted pacemakers and defibrillators

Question 22

what are areas not to put electrodes pads

Answer 22

head
anterior neck
carotid sinus
reproductive organs

Question 23

what are indication for muscle re-edu

Answer 23

poor recruitment and poor motor control

help with reaction time