Coach Back

About Coach Back

Daniel Back is the founder of Jump Science.

Get More Fast Twitch: The Overshoot Phenomenon

Muscle fiber type is one of those topics on which people love to make uninformed statements. You may have heard things like, “Heavy weights work those slow twitch fibers.” Or […]

How to Squat CORRECTLY

“Simply by keeping my torso upright and knees wide like you recommended, I can now squat 325 at a bodyweight of 175. I can also pretty easily dunk a basketball. […]

Evolution or Genetic Variety?

Watch the video on antibacterial drug resistance in E. coli.

Some people use this type of experiment as the chief evidence for darwinian evolution.

Here’s my beef. Bacteria have sources of genetic […]

Sprain your ankle to jump higher?

I received an email with some great examples of the value of rest and questions about the influence of conditioning…

Question: “Hi Coach Back… I had great success with your original […]

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, […]