expertise
EMF (Fitness)
The application of electrical and magnetic fields outside of medicine has been greatly expanded. Both nerve and muscle cells are stimulated by external fields, for example to improve cognitive abilities or to induce targeted muscle contractions.
Electrical muscle stimulation has established itself as a new training method, particularly in the fitness sector, and is increasingly being offered.
For the devices used in this area, such as low frequency, direct current and magnetic field devices, there are internationally recommended limit values (ICNIRP 2009, 2010) that ensure protection against acute health effects. Above these limit values, side effects cannot be ruled out if the device is used improperly or if contraindications are not known. The basic effect of these devices is based on the irritation of nerves and muscles as a result of the additional electrical fields that occur in the body. If the stimulation of muscles is too strong for the person being treated, muscle pain and muscle damage can occur. In extreme cases, muscle death and disintegration is even possible.
When muscles are overloaded, the concentration of certain proteins in the blood increases, which can lead to kidney damage. The physical characteristics of the person being treated must also be taken into account. Small and petite people are always subject to greater strain than tall and strong people.
Untrained muscle cells also react more sensitively to the same stimulation than trained ones. Therefore, untrained people can be damaged more quickly and more severely.
In order to exclude risks as far as possible, the NiSV sets out requirements regarding the qualifications of persons who use non-ionizing radiation sources (expertise).
Status: 09.03.2022