Accelerated Age-related Cognitive Decline: Impact of Exercise on Executive Function and Neuroplasticity

The purpose of this study is to see if 6 months of home-based walking will improve memory, and brain structure and function, compared to health education in older adults that have chronic kidney disease and mild cognitive impairment.

Inclusion Criteria: * • Diagnosed stage 3-4 chronic kidney disease (CKD, estimated glomerular filtration rate (eGFR) \55 yrs of age * Mild cognitive impairment (18-26 on the MOCA) * ability to undergo an MR * no history of major head trauma (No head trauma/concussion with loss of consciousness) * Speaks, reads, writes English Exclusion Criteria: * • Diagnosed Dementia or a Clinical Dementia Rating Scale score of \110 mmHg * Any unforeseen illness or disability that would preclude cognitive testing or exercise training * One or more contraindication for MRI; cardiac pacemaker, aneurysm clip, cochlear implants, shrapnel, history of metal fragments in eyes, neurostimulators, diagnosed claustrophobia (MRI only) * Any self-reported major psychiatric disorders requiring medical therapy (e.g. schizophrenia, bipolar disorder). * Self-reported new diagnosis of clinical depression within 3 months of enrollment or unstable clinical depression requiring medication adjustment within 3 months of enrollment