How much activity do I need? Moderate-intensity aerobic activity Anything that gets your heart beating faster counts. at least 150 minutes a week Muscle-strengthening activity Do activities that make your muscles work harder than usual. AND at least 2 days a week Tight on time this week? Start with just 5 minutes. It all adds up! Richland County Health Department Prevent. Promote. Protect. How much activity do I need ? Moderate - intensity aerobic activity Anything that gets your heart beating faster counts . at least 150 minutes a week Muscle - strengthening activity Do activities that make your muscles work harder than usual . AND at least 2 days a week Tight on time this week ? Start with just 5 minutes . It all adds up ! Richland County Health Department Prevent . Promote . Protect .