chapter 15- biofeeback

EMG

electromyographic feedback

biofeedback

provides information about physiological or biomechanical feedback

biofeedback

provides info about muscle performance

biofeedback

user/ pt. learns to control the processes of muscle activity and self regulate movements

biofeedback

does not provide electrical current to the pt.

the patient

provides the electrical current in biofeedback to asses muscle performance?

direct biofeedback

provides accurate, numerical value of bioprocesses

direct biofeedback

ex: heart rate monitors, smart watches

transformed biofeedback

provides signal of electrical activcity detected in a muscle

transformed biofeedback

surface EMG biofeedback device

EMG biofeedback device

portable and provides audio/visual information on muscle activity

EMG biofeedback device

teach pt. to relax or forcefully contract muscles

primary neurophysiological mechanisms

neuromuscular facilitation, inhibition, coordination

neuromuscular facilitation

“up training”

inhibition

“down training”

coordination

timing

neuromuscular facilitation

improving movement or muscle strength

neuromuscular facilitation

done after orthopedic surgeries, stroke, trauma, or disuse atrophy

inhibition

interfering with muscle activity

inhibition

decreases muscle tone

inhibition

good for pt.s with pain and muscle guarding

inhibition

used for postural defects by improving flexibility and ROM

coordination

improve recruitment and timing of firing muscles

coordination

can be used to improve gait by promoting dorsiflexion in toe off/ pre swing

stoke pt.s with foot drop or shoulder subluxation

quadriceps

biofeedback strengthens this after surgery

headaches

inhibition improves these caused by tension in upper trap and cranial muscles

inhibition

pelvic floor disorders with tight, hypertonicity and can cause pain in intercourse

neuromuscular facilitation

pelvic floor disorders for strengthening in muscles after childbirth, trauma, or weakness causing fecal incontiance

inhibation

improves blood supply

facilitation

normal moving patterns, joint stability

acute fracture, severe muscle strains, allergy to adhesives

EMG biofeedback contraindications

pregnancy, bladder or vaginal infection, within 6 weeks of pelvic or rectal surgery

intracavity sensor contraindications

most commonly used

surface biofeedback

electrodes placed on surface of skin

surface biofeedback

biofeedback for vagina or rectum

intracavity sensor

reactions from electrode adhesivies, cardiac dysfunction

biofeedback adverse effects

dyspnea, fatigue, angina

cardiac dysfunction

contraindicated for those with cardiac dysfunction

isometric exercise

where electrodes go in biofeedback

directly over muscles