• are African American (self-identify)

• are 60 and older

• are physically capable of exercise

• are willing to accept randomization

• are willing to attend group sessions

• plan to live in the study area over the next 13 months and capable of traveling to designated study facility for clinic visits and intervention sessions for the next year

• are free of conditions (e.g. uncontrolled asthma, severe sickle cell disease, etc.) that would make regular exercise unsafe as deemed by the medical investigator

• have not engaged in regular physical activity

• have a Short Physical Performance Battery ≥4

⁃ physically capable of exercise

⁃ are unable to utilize devices and/or applications as required for study participation

⁃ willing to attend group sessions

⁃ willing to allow researchers to use data for research purposes after study participation is completed

⁃ meet criteria for MCI as defined by the NIA-AA research framework a. cognitive performance below normal range (score \< 1.5 SDs below the mean on NIH Toolbox scores for their age and sex on at least one of the subtests)