High Intensity Interval Training (HIIT)

If you join a gym looking to lose weight, then it is almost a certainty that the trainer will ask you to use the treadmill or the elliptical trainer. What he/she may not tell you is how high intensity interval training or HIIT can accelerate your journey towards losing weight. HIIT is a form of cardiovascular exercise which alternates between periods of high intensity (like running at 10 km/h) and periods of low intensity (like running at 5 km/h).
T he concept is simple periods of highly intense activity followed by periods of low activity or complete rest. For example, when you get on the treadmill run at 15 kmph for 2 minutes and then walk at 5 kmph for a minute. Continue this regime for fifteen minutes (or five sets) and you will have burnt more fat than 30 minutes of low-intensity cardio.

Why you need to HIIT:

• Various studies have shown that performing HIIT for the same duration is far more conducive than a steady state workout. It burns more fat, improves your metabolism and also unlike steady state cardio which causes muscle loss as well as fat loss only burns fat! It also helps you burn fat in stubborn places like bellies, thighs and hips!
• It is better for your heart health and even reduces the risk of diseases like diabetes. A study in Ontario, Canada found that two weeks of modified HIIT training prompted the creation of far more cellular proteins involved in energy production and oxygen. The training also improved the volunteers insulin sensitivity and improved blood sugar levels reducing people s susceptibility to diabetes.
• It saves time and is much more beneficial than steady state cardio. You can incorporate HIIT in all your exercise regimes and most gym machines have the option to switch from high-intensity to low intensity. The first thing you should keep in mind is you should warm-up before you attempt it. Say you re using a treadmill and want to incorporate a HIIT regime. Here s what you do:
• First warm-up for a period of 3-5 minutes at normal pace
• Pick the interval option on your treadmill to switch from jog to run (similar options are available on elliptical machines and stationery bikes as well)
• Keep the low intensity speed around 6-8 kmph and high intensity one at 10-15 kmph depending on your level of fitness
• You should begin with a high-low ratio of 1:2. If you run for 1 minute, walk for a period of 2 minutes.
• Continue this for at least fifteen minutes or five rounds of high-low.
You can try similar exercises on the elliptical trainer, stationery cycle and rowing machine. The trick is that you should continue to push yourself. If you start to feel comfortable increase the speed/resistance, if you ve hit the maximum speed/resistance then try to increase your high to low ratio until you hit 2:1 ratio. Try this for a month and reap the benefits.