Is HIIT Primarily For Weight Loss Or Muscle Building?

By Howe Russ


Despite growing in popularity over the last ten years or so, HIIT remains an area of health and fitness still shrouded in mystery. If you are attempting to determine how to build muscle effectively this is one area you definitely need to look into.

Many people who perform this type of exercise are going for weight loss, however there is also a major use here for those looking to improve size and strength.

When it comes to cardio exercise, the fact is most guys don't do enough of it. They're happy to throw around the weights three times per week but if you offer them the opportunity to jump onto a treadmill or exercise bike they'll not be anywhere near as keen.

This is largely because there is a false mentality in most gyms that cardio is for girls. Most guys deem it too boring and not engaging enough.

Believe it or not, if your main target in the gym is to build more lean muscle then cardiovascular exercise will indeed play a huge role in your accomplishments. There are several effective forms of cardio which improve fitness and hypertrophy, most notably high intensity interval training.

There is a massive difference between the steady pace of regular cardio, often billed as boring, compared to that of a high intensity session. Despite being performed on the same equipment, it's a completely different style of workout.

High intensity interval training is based around constantly switching between moderate and high intensities, causing your body to tap into both it's aerobic and anaerobic energy systems. There are striking similarities between an interval training session and a resistance workout.

The two primary energy sources we use during exercise are called aerobic and anaerobic. During regular cardio workouts we use our aerobic system. However, during both resistance training and high intensity intervals we use the anaerobic system instead.

Secondly, one of the best things about resistance training is that the calories continue to be burnt by your body for up to sixteen hours after your session ends. This phenomenon is known as Post Exercise Oxygen Consumption and the exact same phenomenon occurs after a high intensity cardio workout. While you stop burning off calories the moment your regular cardiovascular workout finishes, interval training helps you to carry on even after you have left the gym.

Over the years it has been proven that HIIT helps you to lose more body fat than regular cardio workouts. If you are trying to figure out how to build muscle you should also be including this type of training in your workouts, as it has been proven that short bursts of high intensity activity will tap into your body's anaerobic energy system and make it easier for you to experience muscular hypertrophy.




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