The Effects of Exercise on Synaptic Plasticity in Individuals With Mild Cognitive Impairment and in Healthy Aging.

Individuals will participate in 3 sessions of Self Determined Intensity Interval training, using a cycle ergometer, for 4 weeks.Ratings of Perceived exertion (RPE) will be measured using a Borg's 6-20 scale. (44). Users will be asked to exercise on a stationary bike at an intensity whereby there RPE is challenging. The cycling protocol includes five, 1-minute cycling intervals, interspersed with 1.5 minutes of recovery (cycling at a slow pace to bring the individuals heart rate down). Participants will also perform a 3-minute warm-up and a 2-minute cool-down for a total exercise duration of 17.5 minutes