What is High Frequency electrical stimulation?
The term "high frequency" gets bantered around in medical circles indiscrimately. If one reads that a "bone healing machine" or a "wound healing machine" or one can "repair tissue and get back to competitive sports" if they use a certain high frequency machine for sports rehab. acceleration of healing, then what are they saying?
There is no doubt that estim, electrotherapy, can accomplish the above results however it's not certain any form of "high frequency" is what is causing the changes. Basically in electrotherapy we have a core definition of how our body, specifically nerves, respond to pulses of electricity. We get lost when we venture too far astray from nerves and guesstimate effects on the cellular level. Frequency is nothing but "how many times per second is this tens machine, interferential machine, Russian stim machine, pulsed galvanic machine, or muscle stimulator going off and on. It's nothing more than that.
With electrotherapy and nerves the following applies:
1. C fibers, pain fibers/nerves, respond to 1 - 5 times per second for a machine to go off and on;
2. Motor fibers, muscle nerves, respond to 1 - 38:
3. Sensory fibers, feel something other than pain, 1 - 80.
Due to physical and chemical restraints a machine going off and on more than that has very little, if any effect on those nerves. However the use of "high frequency" generally refers to a machine going off and on from 1,000 - 20,000 times per second so what gives?