The Benefits of Intervals

Short on time? Interval workouts may be just as effective as long, medium-intesity runs (ie. marathon training runs). According to this study, 25-30 minutes of working out using an interval setting can be just as beneficial cardio-vascularly as a medium 40-60 workout without intervals.

After six weeks, the researchers found that the intense sprint interval training improved the structure and function of arteries as much as traditional, longer endurance exercise.

Mark, over at Marks Daily Apple, is a huge proponent of short bursts of high intesity exercise. While I can't quite subscribe to staying away from what he deems "chronic cardio," I do believe that interval training is essential not only to developing a high lactic threshold, but also jumpstarting HGH production in your body.