Even if we know cardiovascular exercise does wonders for our heart health, finding the time to devote an hour to a treadmill session or a run seems like a lot. Well, how about 20 minutes from warm-up to cool-down with only four minutes of intense exercise?
Peak 8 is a type of high-intensity interval training which involves a series of eight, 30-second sprinting intervals with 90-second active “rests” in between. You may use a stationary bike, treadmill, elliptical machine — or even any flat surface such as a track (road, backyard, etc.) that can be measured about 70 yards in distance.
Check out these resources for more information about this kind of cardio workout:
- Peak 8 from Mercola
- Fill out the form at the end of the page to estimate your maximum heart rate.
- Overview of interval training
- Recent study on health benefits of high-intensity interval training