Non-invasive Neuromodulation Intervention with microcurrents: application of 6 electrodes per extremity and an adhesive electrode at C7 level.

Intervention with microcurrents: application of 6 electrodes per extremity and an adhesive electrode at C7.

The electrodes will be placed with the help of gloves and adapted socks for 1 hour, twice a week, until 10 intervention sessions are completed. In addition, depending on the session, an adhesive electrode will be placed at the level of C7.

Characteristics of microcurrents: pulsed monophasic rectangular wave with a pulse of 1.3 s and pause of 300 ms, voltage 3 millivolt and intensity 0.5 μA.

The instrument will be used to measure the change of pain before and after the intervention will be the Visual Analogue Scale (VAS).

Participants will be asked to mark the level of their pain on a 100 mm, no hatched VAS scale marked at one end as "no pain" and at the other as "worst pain imaginable".

The WOMAC ( Western Ontario and McMaster Universities Osteoarthritis Index) questionnaire measures quality of life, in terms of Symptomatology and Physical Disability, in people with osteoarthrosis of the hip or knee.

It contains 24 items grouped into 3 scales: pain (0-20), stiffness (0-8), functional capacity (0-68).

The scales are used separately, they are not added together.

Each item is answered with a 5-level verbal-type scale that is coded:

None = 0; Little = 1; Quite a lot = 2; A lot = 3; Very much = 4.

The EuroQol questionnaire will be used: a generic instrument for measuring health-related quality of life that can be used both in relatively healthy individuals (general population) and in groups of patients with different pathologies. The individual him/herself assesses his/her state of health, first in levels of severity by dimensions.

The descriptive system contains five health dimensions (mobility, self-care, activities of daily living, pain/discomfort, and anxiety/depression) and each has three levels of severity (no problems, some problems or moderate problems, and severe problems).

severity levels are coded 1 if the response option is "no (I have) problems"; 2 if the response option is "some or moderate problems"; and 3 if the response option is "many problems".