Combining Zone 2 running, goal pace running and sprinting in your weekly training plan can be ideal for developing aerobic endurance, pacing skills and explosive speed.

Learn more about this metric and the best training sessions to add to your schedule to boost your cardio fitness.

Working sprints into your training week can help you develop capabilities that are easily lost as we age out of sports and competitions. For middle-age adults, sprinting can be considered the fountain ...