The Flexible Periodization Method
was created to be  a modern day, practical approach to better solve three core challenges strength coaches
and personal trainers face today:

  • How to increase the rate of progress in strength, speed, power or endurance to experience new personal records and improvements in body composition
  • How to minimize overuse injuries (from sport specific practice)
  • How to maximize  transfer from strength and conditioning/fitness training to improvements in sport performance and other movement based activities
An increasing number of strength coaches and personal trainers from around the world find that accomplishing the above goals requires their training programs to be H.I.P:
Holistic  Individualized Periodized hip-programs-cov-2015web.jpg
Takes into account all aspects of the human being in the creation of the training program (body, mind, spirit)  All decisions in the process of creating the program are based on individual goals and needs and not generic or pre-determined standards.  All aspects of the training program are decided based on principles of periodization.
The Flexible Periodization Method – the only complete method of periodization that is dedicated to H.I.P training programs - has solved 6 major limitations of traditional systems of periodizaiton. Read more.

The Flexible Periodization Method helps you apply everything else that you know and allows you to learn and grow from every program that you create. Read More .

The Flexible Periodization Method keeps “the main thing, the main thing” by ultimately being a MAP of the journey towards your athletes' and clients' true potential for strength, speed, power or endurance.

yts_circle-white.jpg Please feel free to send me an email if you want to know more about the Flexible Periodization Method.

You can also join the circle and sign up for our No Gimmicks Ezine and receive access to a document that describes the first 6 principles of The Flexible Periodization Method in full detail.

Karsten Jensen
, founder of Yes To Strength, is the creator of The Flexible Periodization Method and Performance Optimization with Periodization (for the Danish Federation of Sports). Karsten has worked with Olympic, world class and international level athletes from 21 sports over the last two decades. He is the first Strength Coach to create a complete system of periodization.

The Yes To Strength Mission

YTS is on a mission to increase the collective awareness of our true potential for strength, power, speed and endurance and how to manifest it by working with the inherent mechanisms of body, mind and spirit through individualized, holistic and periodized training programs.


After reading a few books on the subject and browsing the internet I came across your book, which seemed to collaborate the majority of periodization ideas out there. After reading the first 2 sections I can say the book is truely helpful and full of exceptional ideas. I can see myself using a lot of the strategies in preparation for my own clients.
Andy Thirlwell, BA PsychologyIKFF, KBI, RKC (Kettlebell specialist)
All American (Univ. of Tenn., Swimming)
Former International Swimmer (Great Britain)
I train all my runners and jumpers with the Flexible Periodization Method and their PR’s just keep coming. The individual programs help them a lot and the best of my athletes are breaking into the top ten in their events in Sweden. I coach track and field in a multisport club and we are now working on integrating the FPM in the other sports, cross country skiing, bike racing, racewalking and orienteering. 
Stefan Simonsson
Track and Field Coach, Sweden

McMaster University was privileged to have international speaker Karsten Jensen present topics on Periodization from his upcoming book to our Strength & Conditioning staff. Karsten's presentation was well-researched and backed by years of practical success.  The presentation was perfect for staff from an academic institution and we look forward to having Karsten back in the near future.
Steve Lidstone
Strength & Conditioning Coordinator
McMaster University

I believe this method is a mandatory must for all trainers. This could be the one topic that we, as a group of trainers, lack the most direction and cohesion.
Gino Zinga, BA
Personal Training Manager

An excellent method learned that makes sense to apply to athletes and individuals focused on their training goals, no matter how varied each client can be.
Sue Wammes, BA Kin
Chatham, ON
Overall I give this book a four out of five star rating, and it belongs on the bookshelf of anyone interested in a practical method of periodization programming.
From “Book Review: The Flexible Periodization Method by Karsten Jensen”Reviewed by Brian Jones, Ph.D.Quoted with permission from MILO: A Journal for Serious Strength Athletes, September 2011, Vol. 19, No. 2
for Sports and Fitness
The MOST COMPREHENSIVE periodization certifications you can achieve.
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Yes To Strength ● Mississauga, ON, Canada ● 647-869-9377
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