Peripheral Nerve Responses to Focal Vibration and Implications in Pain and Mobility for Patients With Diabetic Peripheral Neuropathy

Inclusion Criteria: * Diagnosis of diabetes for at least one year; * Diabetic peripheral neuropathy as defined by failure to sense the 5.07 (10g) monofilament test in one or more of the six sites tested; * Age 45-80 years old; * Able to ambulate independently without assistive devices (e.g., walker or crutches) for 30 feet; * No evidence of neurological (other than peripheral neuropathy) or orthopedic conditions; * Able to understand English instructions; * Have normal or corrected vision. Exclusion Criteria: * With other non-diabetic causes of neuropathy by history; * Symptomatic peripheral vascular disease, joint pain, swelling and/or limited range of motion in the lower extremities that interfere with walking; * Other systemic or local diseases that could interfere with walking assessment * Amputation in the lower extremities; * Clinically diagnosed with dementia greater than mild (screened using Montreal Cognitive Assessment (MOCA) \<24)