Strength Coaches and Personal Trainers
Use this Proven System to Confidently
Create Better Training Programs

BE SO GOOD clients cannot train without you!

Athletes and clients get frustrated when they don't accomplish their goals, or worse, get injured as a result of their strength and conditioning/fitness program.

Their frustration is compounded if they feel the program was generic and not truly designed to meet their individual needs.

The Flexible Periodization Method helps coaches and trainers design safe and effective strength and conditioning/fitness programs that fit, like a lock and key, the unique needs of their individual athletes or clients.

Strength coaches and personal trainers who work with the Flexible Periodization Method feel confident in their ability to help their clients achieve their goals.

I train all my runners and jumpers with the Flexible Periodization Method and their PRs 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

Yes to Strength offers The Flexible Periodization Method; a precision program design system that strength coaches and personal trainers use to help their clients achieve their unique fitness and performance goals.

 Copyright © 2007-2021 Yes To Strength and Karsten Jensen. All rights reserved. 

All information contained on is intended for use by individuals who are healthy, injury-free adults aged 18 years and older who possess sound knowledge and skill execution of strength training exercises and their application and a thorough understanding of proper exercise technique and their application. We urge you to exercise care and caution when attempting any of the exercises, combinations, tips and strategies mentioned and to seek competent help and counsel from trained medical or fitness experts before beginning any new exercise program, or if you have any questions about your health. and Karsten Jensen are neither responsible nor liable for any harm or injury resulting from use of the information described herein.

Mississauga, ON   CANADA

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647-869-YESS (9377)