To increase your aerobic capacity and improve your endurance to run farther than you can now, you need to train consistently. Consistent training will build your aerobic base, increase your aerobic capacity (which is how much oxygen your muscles can use) and strengthen your muscles. When you begin to add extra runs to your week, they should be easy and slow – speed follows endurance! You should aim for 3 to 4 sessions per week for 30 minutes or more. Aim to make one of these sessions your long run where you plan to go farther than any of your other runs that week.
