Despite being very popular, HIIT is a subject which many people low very little about. It requires you to take a slightly different approach in your training in order to get the most from the multiple benefits it has to offer. If you're trying to discover how to build muscle with this style of exercise, then this is crucial.

Of course, we are talking about nutrition. In fact it is the pre-workout period of nutrition which we will be discussing in more depth today because this is the area which many people don't pay any attention to at all.

If you can take the necessary steps to provide your muscles with the right fuel for each session then you will in turn increase your overall results by almost 30%, according to the latest scientific studies on the topic. []

The first thing you must do to get the right nutrients before a hard workout is look at which energy source you'll be using in your session. While long, steady-state cardiovascular workouts tend to slowly chip away at your body's fat storage, intervals do not do this. Instead, they mainly use your glycogen (carb) stores.

The real benefits of this training happen after you leave the gym, where your body continues burning off calories at an increased rate for up to 14 hours. You may have heard this phenomenon called the afterburn effect. Instead of slowly chipping away at your fat stores and then ending the process when you leave the gym like regular cardio exercise, a high intensity workout depletes your carbohydrate stores first before going to work on fat stores. In doing this, your body enters a process called EPOC after your training has finished. It protects what little carb stores you have left and burns off excess fat instead. This process lasts an incredibly long time, and one calorie burnt during a high intensity session equates to around nine calories burnt during a long cardio workout.

As you can see, what we want to be doing in the gym is depleting your carb resources as quickly as possible so that we can force the body to enter the afterburn effect immediately when you finish working out. So, for this very reason, it would be foolish to eat a big bowl of oatmeal before you trained.

This is why many people choose to workout on an empty stomach. But is this approach really the best way to maximize results?

Not quite. While you should look to avoid heavy carbohydrate sources before you train, you can actually increase your results if you use protein as this will work to protect your lean muscle tissue from being burnt off during an intense training. This means not only will you lose fat, you'll also hang onto and maybe even build more lean muscle tissue!

One other minor mistake many people make is to go with BCAA supplements after a session. Recent studies confirm that consuming Essential Amino Acids (EAA's) instead of BCAA's will increase results further. While any branched chain amino acids supplement will provide you with three of the key amino acids for building lean muscle tissue, they neglect the others. Amino acids function as a team, therefore taking EAA's would be much more functional.

Furthermore, consuming your serving pre-workout as opposed to post-workout has been shown to increase muscle uptake by around 27%. Combined with a whey protein shake, you'll be able to protect your body from any lean tissue breakdown and fight off any feelings of hunger while performing high intensity training and burning through those carbohydrate reserves.

Getting the right kind of nutrition into your system before you train can be crucial when performing HIIT sessions on a regular basis. Learning how to build muscle is often a game of opinion, with many exercise enthusiasts lost in a sea of misinformation. By looking at the very latest science on the subject, you can get more from every session in the gym.