Healthy volunteers test devices that boost leg circulation

Copied word for word from the study's registry entry, so the wording is the study team's rather than ours.

Inclusion Criteria: 1. Subjects, both male and female, ≥ 18 years of age at the time of consent. 2. Subject is available to attend all study appointments for the study duration 3. Any Subject who has reviewed the IEC-approved consent form, has been properly consented per the protocol and has documented their consent to participate in the study by signing the Ethics-approved consent form. Exclusion Criteria: 1. Subjects with any cognitive impairment who prevent to understand the information provided and freely and autonomously provide and sign informed consent to participate in the study. 2. Subject is pregnant or has plans of becoming pregnant for the duration of the study. 3. Presence of cancerous tumours/Neoplastic tissue/lesions in treatment area (back lower limb of both legs) 4. Subject possesses a prosthetic lower limb 5. Diagnosed with diabetes 6. Cortisone therapy ongoing or within the last 6 months before treatment 7. Diagnosed Haemophilia, Thrombosis, Deep vein thrombosis, phlebitis, varices, risk of haemorrhage, occlusive vascular disease or other coagulation disorders 8. Treatment with anticoagulant pharmaceuticals 9. Reduced sensitivity over the proposed area of treatment (back lower limb of both legs) 10. Suspected or diagnosed cardiopathy 11. Any history of cardiovascular disease e.g., cardiac arrhythmia and angina pectoris, arterial disease, circulatory insufficiency. 12. Implanted electronic devices e.g., cardiac stimulator, implanted defibrillator or other implanted electronic/electrical device 13. Hypertension (\> stage 2), ischemic heart disease and cerebrovascular diseases 14. Peripheral vascular disease or serious arterial or venous circulation problems in any of the lower limbs. 15. Systemic or local infection. 16. Open wounds, rashes, swollen, red, infected, inflamed areas or skin eruptions at the site of treatment (back lower limb of both legs). 17. Diagnosis of Epilepsy or has had any previous Epileptic episodes. 18. Proven allergy to the study devices materials or electrodes. 19. Recent surgery or metal implant present at the site of treatment (back lower limb of both legs)