Inclusion criteria:  Healthy participants able to cooperate and to follow instructions. Participants having a normal value for electrophysiological parameters (Nerve conduction studies) Participants must be free from any musculoskeletal impairment of the limbs  Exclusion criteria:  Participants with neurological disorders Participants with cognitive impairment Participants receiving medications that may affect the NCS Participants with small fiber neuropathy (burning sensation, pricking sensation, allodynia, and hyperalgesia) Participants with an abnormal value for Nerve conduction studies Participants with musculoskeletal impairment of the limbs