Online Course 

Whether you're a professional player, a recreational athlete, or a coach, the course provides valuable insights to help improve your performance through short interval training.

Get Ahead Everyone With this Knowledge!

Learn to break down complex training concepts into easy-to-follow steps.

Even if You Have no Experience Conducting These Types of Training Sessions, This Course Will Equip You to Master it And Excel!!!!

I’m Ready to Take my Knowledge to the Next Level

Let's be honest

Does this sound like you?

  • You feel overwhelmed and unsure of how to improve your performance through training and matches.

  • You want to increase your speed and endurance, but every time you try, the results don't seem to last.

  • You're not sure where to begin when it comes to structuring effective interval workouts.

  • You wish your training routine was more focused and productive, instead of feeling chaotic and unorganized.

You’re Not Alone!!

We understand the frustration of trying to improve your coaching and athletic performance but feeling stuck and  unsure of the right training methods.

 

Many athletes and coaches, ourself included, have struggled with ineffective training routines. By mastering short interval training, we've unlocked new levels of speed, endurance, and confidence.

 

Andrej was constantly fatigued and unable to maintain his performance during games. After applying the techniques from this course, he now feels stronger and more explosive throughout each match.

 

Tomislav was constantly feeling overwhelmed and unable to organize his training sessions. Learning to apply the techniques from this course, he now manage like a king his sessions and lose rarely competitive matches.

 

Imagine 30 Days From Now You Had...

  • A training routine that you're proud of, seeing real improvements in your speed and endurance
  • A structured and efficient interval program that brings focus and progress to your coaching journey.
  • More energy and stamina on the field, allowing you to perform at your best when it matters most

Master of the "break down complex training concepts into easy-to-follow steps."

INTRODUCING

Mastering Short Interval Training

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You Are Ready To Break Down Complex Training Concepts Into Easy-to-Follow Steps?

Mastering Short Intervals is your ultimate guide to harnessing the power of short interval training and transforming your performance in football or team sports. You’ll learn how to:

  • Overcome the challenge of improving endurance—all through an easy-to-follow, structured approach to short interval training
  • This course will give you the tools and techniques you need to optimize your training sessions
  • You'll learn how to calculate key metrics like MAS, MSS, and ASR, develop tailored training programs, and track your progress using real-world methods

By the end, you’ll have mastered the strategies needed to elevate your fitness and athletic performance, gaining a competitive edge in any sport.

GET STARTED

Mastering Short Intervals

MODULE 1

The basics of short interval training and how it benefits football performance

Kickstart your journey by understanding the science behind short interval training and its role in HIIT, including:

  • Benefits for Football and Team Sports
  • Physiology of Short Intervals
  • Work-to-Rest Ratios, This training method involves specific work-to-rest ratios tailored to the needs of the sport.

Gain a deep understanding of how short intervals can amplify your fitness and athletic performance.

MODULE 2

Key Variables to Monitor During HIIT

To train effectively, you need to track the right metrics. This module introduces key variables like heart rate, speed, and work-to-rest ratios that will guide your training sessions.

You’ll learn how to use these tools to monitor progress and optimize your performance, ensuring you're always pushing your limits without risking overtraining.

MODULE 3

Defining the Engine of an Individual – Testing Functional Capacities

In this module, you’ll learn how to accurately assess your fitness using proven testing methods like VIFT and Conconi. Understand your body’s unique strengths and areas for improvement by measuring key metrics such as Maximum Aerobic Speed (MAS), Maximum Sprint Speed (MSS), and Anaerobic Speed Reserve (ASR). These insights will form the foundation of your personalized training plan.

Identify your current fitness level and learn how to maximize your athletic potential through personalized metrics.

MODULE 4

Designing Interval Programs

Now that you understand the science and have gathered your metrics, it’s time to put it all together. This module will teach you how to design short interval training programs tailored to your specific needs and goals. Whether you’re working with athletes or improving your own fitness, you’ll learn to create sessions that enhance endurancey.

Develop the skills to create highly effective interval training programs, personalized to your unique fitness profile.

MODULE 5

Applying Knowledge in Real-World Settings

In the final module, you’ll discover how to apply what you've learned in real-world settings. Periodization will be your guide as you plan long-term training cycles that balance high-intensity work with recovery. Learn how to adjust your training plan as you progress and ensure you peak at the right times, whether it’s for competition or overall fitness improvement.

Become proficient in structuring and periodizing your training programs for sustained performance growth and peak fitness when it matters most.

MEET YOUR INSTRUCTORS

Marko Matušinskij & Ivica Klunić

Marko Matušinskij and Ivica Klunić bring decades of combined experience in the fields of sports conditioning and performance coaching. Both are passionate about helping athletes reach their full potential, regardless of their starting point.

Marko Matušinskij:

Marko is originally from Vinkovci and now based in Zagreb, is a passionate performance specialist with a focus on helping athletes reach their best. He has worked as a strength and conditioning coach and head of performance at several clubs, including Dinamo, Istra, Lokomotiva, Rudeš, and the U21 Croatian Men’s National Team. Now, he’s the Head of Sports Science at Ultrax and leads performance for ŽNK Dinamo. Outside of work, Marko enjoys spending time with friends, playing football, and practicing Brazilian Jiu-Jitsu. 

Ivica’s Story:

Ivica’s love for sports began in his childhood, and he’s been immersed in swimming, football, basketball, and triathlon ever since. This passion led him to complete his degree in Sports Conditioning at the Faculty of Kinesiology in Zagreb. Over the years, Ivica honed his skills as a coach, working with children’s football teams and creating fitness programs for athletes at all levels. His journey from a fitness enthusiast to a respected coach is a testament to his belief that anyone can achieve greatness with the right tools and mindset.

MEET YOUR INSTRUCTORS

Together,

Marko and Ivica have helped countless athletes achieve breakthroughs in their performance. In Mastering Short Intervals, they share their proven methods, scientific knowledge, and practical experience so you can make the same transformation they did—from striving to thriving in sports.

Ready to take the leap? Let Marko and Ivica guide you through this course, and start mastering short intervals today! 

GET STARTED

Branko Užarević

"Very well briefly and clearly explained the effects of this type of training with practical examples. Now I am ready to take my coaching to the higher level"

Andrej Sedlar

"Thanks to the solid theoretical background and practical examples, I was able to start applying what I learned immediately. The clear information gave me the confidence to work with athletes right away, answering so many of my questions and strengthening my approach. "

What Makes Us Different...

  • Easy-to-Apply Strategies: We break down complex training concepts into simple, actionable steps, making it accessible for both beginners and seasoned athletes
  • Scientific Approach: Backed by proven testing methods like VIFT, this course offers evidence-based strategies to track and improve your performance
  • Personalized Training: Learn how to create interval programs based on your unique fitness profile, ensuring every session is optimized for your goals
  • Expert-Led Insights: The course is led by experienced coaches who have successfully transformed athletes at all levels, providing real-world expertise and support.
Break Down Complex Training Concepts Into Easy-to-Follow Steps

Mastering Short Intervals

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