The CrossFit Warmup Generator

About The Generator

A helpful algorithm designed by Doctors of Physical Therapy and CrossFit Coaches


While CrossFit WODs get the spotlight, athletes who really understand their bodies know that it's the warmup that can make or break a good day in the gym. So how do you warmup properly to both prevent injury and enhance performance?

Introducing the CrossFit Warmup Generator. A dynamically generated algorithm designed by Doctors of Physical Therapy and CrossFit Coaches that considers as many important variables as possible to get you going quickly. Things such as movement planes, activation, full range of motion, order of movements, loading, warmup equipment, and time constraints... all neatly wrapped up in a simple mobile-friendly interface.

Give it a go for your next WOD and let me know what you think!

About Me

Dr. Marcus Rein PT DPT CF-L2

Lead Software Designer of The CrossFit Warmup Generator, Physical Therapist, and CrossFit Coach


Dr. Marcus Rein began his journey into the world of movement science when he played international soccer for the US Soccer Federation as well as collegiate soccer at Wake Forest University and the University of Central Florida. In these highly competitive environments, he was introduced to olympic lifting, strength training, exercise programming, and the relationship between high-quality movement and sports performance. After his soccer career ended due to multiple orthopedic injuries, he started a business based on training athletes using a blend of prehabilitation and sports performance. Driven by the desire to provide care that fully encompasses both sports performance and advanced rehabilitation progressions, he left his business to pursue a Doctorate in Physical Therapy from Samuel Merritt University. After graduating in 2016, he continued his pursuit of understanding movement science by regularly coaching CrossFit (CF-L2) as well as receiving specialized training in dry needling, various manual therapy techniques, Proprioceptive Neuromuscular Facilitation, Kinesiotaping, and concussion rehabilitation.

Dr. Rein has now expanded his skillset to include software design. Through self-taught methods and guidance from his brother and a few helpful friends along the way, he is proud to bring you The CrossFit Warmup Generator.