Interval training: A faster route to a stronger heart?

interval training, running, beach, exercise
Image: Thinkstock

Short bursts of intense exercise may help build heart fitness. But run the idea by your doctor before you begin.

Want to add some variety to your exercise routine and finish your workout a little faster? Consider interval training, which alternates short, intense bouts of exercise with longer periods of lighter, less vigorous activity. The potential payoff may be enhanced cardiovascular fitness in less time.

To continue reading this article, you must login.
  • Research health conditions
  • Check your symptoms
  • Prepare for a doctor's visit or test
  • Find the best treatments and procedures for you
  • Explore options for better nutrition and exercise
Learn more about the many benefits and features of joining Harvard Health Online »