Add This to Your Jog For Better Health Results

Instead of long, steady runs, this method adds short bursts of sprinting into your workout. It’s a form of high-intensity interval training (HIIT), and research shows that it can lead to faster improvements in endurance, metabolism, and fat loss compared to running at a continuous pace.

How Interval Running Works

The idea is simple: alternate between more strenuous efforts and recovery periods. That could mean sprinting for 10–30 seconds, then jogging or walking for the same amount of time, and repeating the cycle several times.

There are different ways to structure it:

• The 10-20-30 method: jog for 30 seconds, run at a moderate pace for 20 seconds, then sprint for 10 seconds.
  

• Fartlek (“speed play”): during a normal run, pick random points — like lamp posts or street signs — and sprint to them before easing back into your jog.
  

This flexibility makes interval running approachable, whether you’re a beginner or an experienced runner.

The Science Behind the Benefits

Studies consistently show that sprint intervals push the cardiovascular system harder in a shorter time. For example, overweight participants in one trial experienced greater improvements in VO₂ max (a key measure of cardiovascular and respiratory fitness) after sprints compared to steady-state running. Even regular runners gained more cardiovascular capacity when they added intervals to their training regimen than when they stuck with longer endurance runs.

The metabolic benefits are just as impressive. Interval running enhances the body's ability to regulate blood sugar, strengthens mitochondria (the “powerhouses” of cells), and lowers both blood pressure and LDL cholesterol. It also helps reduce visceral fat —the dangerous fat stored around organs —more efficiently than steady-state exercise. Remarkably, many of these gains can be achieved with as little as 18 minutes of sprint intervals, three times a week.

How to Get Started Safely

If you run outdoors, a simple way to start is to sprint from one lamp post to the next, then walk or jog to recover. In the gym, most treadmills have interval programs you can follow, or you can use a non-motorized treadmill for short sprints.

The key is intensity: during your “on” phase, aim to push your heart rate close to 90% of maximum. Then give yourself enough recovery before the next effort.

That said, interval running isn’t for everyone right out of the gate. 

If you’ve been sedentary or have medical conditions, it’s best to build up gradually and check with your physician first.

For people with diabetes, for instance, intense intervals can occasionally raise blood sugar, so guidance is especially important.

Small Changes, Big Payoff

You don’t have to overhaul your training routine overnight. Start by sprinkling a few sprints into your usual run, or experiment with the 10-20-30 method once or twice a week. Over the course of a few months, most people notice stronger endurance, improved fitness markers, and less body fat — all in less time than traditional runs require.

In other words, with interval running, a little intensity goes a long way.