
Thank you so much for visiting! As I’m sure you’ve noticed if you’ve already clicked on an article or two, the terminology and methodology underpinning the articles on this site is unusual. In fact, it’s not just unusual, it’s completely unique. This is because the theory underlying these analyses is based on ongoing (as yet unpublished) research. Think of what you see here as a window into this research.
On this page you’ll find a set of guides to this new theory, as well as a glossary of terms. Hopefully with these tools, you’ll be able to understand these analyses, as well as how they can be used to evaluate player talent and schematic fits in the NFL. And if you have any further questions, please don’t hesitate to reach out via the contact form, or to leave a comment under a recent article. Thanks for reading!
Guides
The Guide to Biomechanical Efficiency explains the basic theory and methodology underlying the analyses at this site
The Guide to Biomechanical Borrowing examines what exactly is meant by the term ‘borrowing’, and how this can affect development
Glossary
Anterior is the front of the body, as seen in the diagram below. May also refer to the anterior spine (the part of the spine facing outward towards the front of the body)
Posterior is the back of the body, also as seen in the diagram below. May also refer to the posterior spine (the part of the spine facing backwards towards the rear of the body)
Medial refers to the center of the body (closest to the spine). For the limbs, the pathways leading to the thumb/ forefinger (and equivalent toes) are medial
Lateral refers to the outside of the body (further from the spine). For the limbs, the pathways leading to the middle/ ring/ pinky fingers (and equivalent toes) are lateral

Cervical is the spinal area linked with the head and neck
Thoracic is the spinal area linked with the shoulders, arms, hands, chest, upper/ mid-back, and upper abdomen
Lumbar is the spinal area linked with lower abdomen/ back and the legs/ feet

Biomechanical Efficiency is a measure of blood flow, response time, and fascial development (please see Guide to Biomechanical Efficiency for a full explanation)
Biomechanical Borrowing is when areas are linked and fire together, rather than acting independently (please see Guide to Biomechanical Borrowing for a full explanation)