The Benefits of the Grit Series

High-intensity training is one of the best ways to stimulate the entire body. Get to know the grit series, a new way to train and feel motivated.
The Benefits of the Grit Series

Last update: 25 December, 2020

Those who aren’t immersed in the world of training probably don’t know what the grit series consists of. In fact, even fitness individuals may not be familiar with it if they don’t perform high-intensity training. However, this is part of HIIT, an acronym for high-intensity interval training.

If you’re one of those people who doesn’t know what we’re talking about, we invite you to continue reading this article. Here, we’ll explain what the grit series is about and what its main benefits are.

What does the grit series consist of?

Generally speaking, the grit series is a training method that combines plyometric and cardiovascular work performed in 30 minutes. Its main objective is focused on motivating the person to train to the maximum of their abilities in a short period of time. This demands a maximum intensity from the athlete to execute the previously planned routine.

Professionals from various fields developed this method, among which doctors, physiotherapists, and trainers from AEFA Les Mills stand out. As you can imagine, this type of training favors those who have little time to carry out their routine. However, professionals recommend being in good physical condition to execute the grit series fully.

Benefits of the grit series

Since the grit series is part of the HIIT exercise, they both have pretty similar benefits. Two of the most important would be fat burning and the improvement of physical condition. Up next, we’ll be showing you some of the main benefits of this training method.

A group of men doing crossfit.

You save time

Nowadays, time is a pressing factor due to all the responsibilities most of us have to take care of every day. After all, many people feel ‘forced’ to go to work, spend time with their family or friends, dedicate themselves to their personal projects, and, of course, do physical exercise.

This isn’t a problem with the grit series. This method offers you the opportunity to carry out a training routine in just 30 minutes of your day. However, we recommend doing it every other day, since highly intense training requires more time for adequate recovery.

You burn more calories

Getting the body to work at high intensity stimulates the main energy pathways. First, carbohydrates come into play to provide energy for the body, specifically the muscle groups present in the routine.

Additionally, fats provide energy to the entire body by breaking down into fatty acids. This occurs because, with the grit series method, the body is subjected to intensities of 80 – 90 percent.

On the other hand, there’s also the EPOC effect, which refers to excess post-exercise oxygen consumption. This occurs because the body tries to return to its normal levels after being in high intensity, and it uses energy to do so.

It improves stamina

Another benefit of practicing the grit series is endurance improvement (both aerobic and anaerobic). This occurs thanks to the constant stimulation of the heart and lungs. Gradually, this method helps to increase loads and intensities in other types of training, even in sports competitions.

You’re able to increase your muscle mass

Fat burning isn’t the only benefit related to appearance. In fact, this training greatly benefits the increase in muscle mass.

This increase occurs especially when working on grit strength, which focuses on strength work through bars and discs. However, it’s also common to use stimulation through calisthenics.

A man performing the grit series.

Learn more about the grit series

If you’re a lover of high-intensity training, you should try the grit series method and see for yourself the benefits it can bring. If you’re a beginner in this regard but are still interested, don’t hesitate to ask for help.

Remember that approaching any training method without proper knowledge and guidance can lead to a physical or physiological problem. That being said, don’t be afraid to ask a professional to answer the questions you may have. Your body and health come first at all times!

Last but not least, keep in mind that if you want to practice the grit series you must be in moderate physical condition. Remember that this is a high-intensity training method, which means you shouldn’t take it lightly.


All cited sources were thoroughly reviewed by our team to ensure their quality, reliability, currency, and validity. The bibliography of this article was considered reliable and of academic or scientific accuracy.


  • Ramos, J. S., Dalleck, L. C., Tjonna, A. E., Beetham, K. S., & Coombes, J. S. (2015). The Impact of High-Intensity Interval Training Versus Moderate-Intensity Continuous Training on Vascular Function: a Systematic Review and Meta-Analysis. In Sports Medicine. https://doi.org/10.1007/s40279-015-0321-z
  • Costigan, S. A., Eather, N., Plotnikoff, R. C., Taaffe, D. R., & Lubans, D. R. (2015). High-intensity interval training for improving health-related fitness in adolescents: A systematic review and meta-analysis. In British Journal of Sports Medicine. https://doi.org/10.1136/bjsports-2014-094490
  • Gomez Piqueras, P., & Sanchez Gonzalez, M. (2019). Entrenamiento de intervalos de alta intensidad (Hiit) en adultos mayores: una revisión sistemática. Pensar En Movimiento: Revista de Ciencias Del Ejercicio y La Salud. https://doi.org/10.15517/pensarmov.v17i1.35494

This text is provided for informational purposes only and does not replace consultation with a professional. If in doubt, consult your specialist.