Christopher Klein

Trojan Workout instructor

Short bio:

Practicing Krav Maga at Defend Yourself Krav Maga since 2013 and as an instructor since 2018.

What does “being strong” mean to you (mental and/or physical)?

Of both of these I consider being strong mentally as even more important as being strong physically. Physical strength maybe makes you more restistant, lifting heavier weights or (in terms of Krav Maga) let throw stronger and heavier punches, but mental strength is what keeps you going. Being strong mentally makes the difference between winning or losing a fight. Being strong mentally makes you exceed your limits when you thought you reached them. Being strong mentally enables you to achieve goals that always seemed impossible to accomplish for you.

So in order for becoming strong physically, you have to become strong mentally. Both has work in alignment.

That is what Trojan Workout is about. To help you to become strong both: Physically and mentally.


  • Defend Yourself Krav Maga
  • Address:
  • City: Brensbach
  • State: Hessen
  • Country: Germany


What others say

Martijn Bos, the creator of the Trojan Workout, is the real deal. He is a master teacher. His Trojan Workout - a revelation. He has engineered an approach to true fitness that will help you create a healthy body and mind that works for you, not against you. Enjoy the radical transformation that awaits you!

Dr. Mark Atkinson

Medical Doctor., Creator of Self-Leadership Training.

There is no doubt that the methods of the Trojan Workout are the best practice methods for those who seek fitness and strength, integrated with realistic experiences, and these are the motifs I was glad to find in this book. It is also a wonderful way to expend the knowledge of Krav Maga, as it was founded by IMI and continues to grow and improve by the new creative and gifted minds of this generation.

Avi Moyal

Master in Krav Maga, Head instructor IKMF

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Gonnetstraat 7
2011 KA Haarlem

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