thermal US mode
continuous
thermal US intensity
0.8-2 W/cm2
- gradually increase intensity so the patient feels heat
time for thermal US delivery
10-15 mins
US frequency for superficial
3 MHz (MEGA Hz)
US frequency for deep
1 MHz
how often should you apply thermal US
3x/week
athermal US mode
pulsed 20% or 1:4
athermal US intensity
1 W/cm2
athermal US delivery time
15 mins per 10-15cm2
how often should you apply athermal US
5x per week for 2-3 weeks then 3x per week for 2-3 weeks
what is ultrasound?
this machine delivers high frequency mechanical sound waves to your tissues, creating tiny vibrations in your tissues that you can’t actually feel
type of energy delivered by US
mechanical (high frequency sound waves)
purpose of thermal US
heat tissues and increase collagen extensibility
purpose of athermal US mode
promote tissue healing, wound healing, and potentially delivery of drug across tissue
- provides optimal environment for healing
contraindications for US
measurable changes with athermal US
AROM before and after treatment
measurable changes with thermal US
pain before and after treatment
C-TENS frequency
80-120 Hz
C-TENS pulse duration
150-200 microseconds
C-TENS amplitude
strong and sub-noxious but tolerable, should “mask the pain”
time for C-TENS application
as long as required to mask the pain
placement of C-TENS electrodes
along dermatome/bracketing pain/over areas of pain/over muscle at same spinal segment
- don’t want to cross the electrodes
what is C-TENS?
TENS is a non-invasive electrical stimulation that helps to treat pain, specifically short term acute pain
what should the patient feel with C-TENS
buzzing or tingling sensation that masks your pain
- strong but tolerable
- no muscle twitching