Mirror Neurons in Older Participants

Inclusion Criteria: * Healthy men and women ≥60 years of age Exclusion Criteria: * Neuromuscular disease (e.g. Parkinson's, MS, ALS) * Metabolic disease (e.g. diabetes, thyroid disorder, metabolic syndrome) * Arthritis in the upper limbs (hands, arms, shoulders) * Trouble using or controlling one's muscles * History of cancer * History of stroke * History of heart attack * Use of an assistive walking device or other mobility aids * Physician mandated contraindication to exercise within the last 6 months * Epilepsy or history of convulsions/seizures * History of fainting or syncope * History of head trauma that was diagnosed as concussion or was associated with loss of consciousness * History of hearing problems or tinnitus * Cochlear implants * Implanted metal in the brain, skull, or elsewhere in the body * Implanted neurotransmitter * Cardiac pacemaker or intracardiac lines * Medication infusion device * Past problems with brain stimulation * Past problems with MRI * Use of muscle relaxants or benzodiazepines * Allergy to rubbing alcohol * Any other health related illnesses that would prohibit a participant from physical performance testing * Lack of transportation to and from the laboratory