About how to use electrotherapy electrodes, say "where the pain, where to stick." But is it really the case?
Electrodes are divided into many types, there are physiotherapy, electrocardiogram, heating electrode and massage electrode and so on. Today we will mainly talk about the physiotherapy electrodes in the rehabilitation department.
There are many kinds of physiotherapy electrodes,
It mainly includes a variety of medical physiotherapy products configured with medical intermediates in contact with human skin,
According to the functions of various physiotherapy instruments, the physiotherapy electrodes can be made of various materials that are harmless to the body. And our commonly used physiotherapy electrode is electrotherapy electrode.
According to the material can be divided into: PET self-adhesive electrode sh, silicone self-adhesive electrode , fabric self-adhesive electrode. We commonly use the fabric self-adhesive electrode , which can also be distinguished according to different sizes, commonly used 50mmX50mm and 50mmX90mm.
Where should the electrodes be stickness ?
The human fluid has the highest direct current conductivity, and cerebrospinal fluid, lymph fluid, bile and blood are excellent conductors.
Nerve, muscle, brain, kidney and so on are good conductors.
Connective tissue, skin, fat, bone tissue and other electrical conductivity is poor, is a poor conductor.
The stratum corneum of the skin is the most resistive of all human tissues. Dry hair, nails, etc. are almost completely non-conductive.
Blood: Contains a lot of water and ions, is the best electrical conductor.
Muscle: 75% water, but depending on how ions move when muscles contract,
When the ion moves lengthwise, it can conduct more electrical impulses.
Tendons are denser than muscles and have less water, so they are considered poor electrical conductors.
Bone: Extremely dense, with only 5% water, is the worst bioconductor.
Skin: The skin's ability to conduct electricity mainly depends on sweat gland ducts and their secretions,
Because the area of the sweat duct is small compared with the entire skin area, the resistance of the skin is large and it is a poor conductor.
So when we stick the electrode, we still choose the muscle area and avoid the bony process area as much as possible.
