Coach Back

About Coach Back

Daniel Back is the founder of Jump Science.

Jumper’s Knee

TESTIMONIAL: “The stretches and exercises he shows to avoid and/or recover from the jumper’s knee are the best. I had a really bad jumper’s knee, but 1 month later I […]

The Truth About Westside Dynamic Effort

Let’s talk about lifting light weight as part of your strength training regimen. I recently got into a discussion (argument) with a couple people, which revealed to me that there […]

Jump Science University: Muscle Tension

The video series below covers biomechanical and physiological factors that influence muscle tension. Along the way you get a good amount of university level anatomy and physiology education. With this […]

Pain Above the Knee Cap?

The rectus femoris (green marker) is one of the quadriceps muscles, but it is anatomically and functionally unique to the rest of the muscle group. The other quads simply cross […]

The Explosive Performance Window and Periodization

This post is just a video regarding the design of training over the long term.

Jump Squats and Hex Bar Deadlift

One of the things that drives me crazy is the misinterpretation of research results. I have most often seen this in the case of measuring physics outputs like force, impulse, […]

The Bilateral Deficit and Unilateral Training

What the heck is the bilateral deficit? Watch the video.

There may be some skepticism or confusion regarding the bilateral deficit. People may wonder why they cannot 1-arm bench press more […]

Supersetting strength and explosive exercises

Q: “How do you feel about doing plyos in between sets of squat or deadlift?”

A: “The purpose of doing explosive training in between or after strength training is to take […]

On the Origin of Species

From a purely scientific standpoint, the evolution of species from one ancestor is a joke.

From what science has shown, the process is impossible. Mutations don’t add more genes to the […]

Long-Term Training Goals

The goal of this article is to provide some long term goals for athletes to pursue in their training for athletic enhancement. With all the various types of training, set/rep […]