Use velocity, effort metrics, and tissue quality strategies to maximize gains without overtraining.
Based on: Exercise Physicist: The Simplest Way to Build Muscle and get Stronger is NOT More Volume by Thomas DeLauer
What if the reason you are not building muscle as fast as you want has nothing to do with how hard you are training, and everything to do with how smartly you are managing your training load? That question is exactly what Thomas DeLauer and world-record powerlifter Chris Duffin dig into, and the answer will genuinely change how you think about every session you do from here on out.
Most lifters are stuck in a frustrating loop. You push hard, something nags, you back off, you lose momentum, and the gains stall. Or you play it safe, leave reps and weight on the bar, and wonder why progress is so slow. Neither approach is working, and the reason is simple: you are operating on guesswork with a massive margin of error. You do not actually know how much work your body can handle that day, which muscles are approaching a breakdown threshold, or when to push for an extra five pounds versus when to call it early and come back stronger.
Imagine training every session with the confidence of having the best coach in the world watching every rep. You know your true daily max without ever maxing out. You catch the exact moment a muscle starts compensating before an injury develops. You find micro-opportunities to add weight or volume you would have otherwise left on the table. Over three, six, and twelve months, that precision compounds into results that feel almost unfair compared to what you were doing before. That is what Chris Duffin experienced when he pioneered velocity-based training on his way to multiple all-time world records in powerlifting, and it is the same framework laid out in this checklist.
Chris Duffin is not a fitness influencer with a camera and a supplement deal. He is an exercise physicist and engineer who has squatted and deadlifted over 1,000 pounds, coached elite athletes, and built the scientific methodology behind some of the most advanced training systems in strength sports. When he talks about velocity-based training, the jerk metric, K values, and tissue quality, he is speaking from decades of applied research and real-world results at the absolute highest level of performance.
This checklist distills everything from that conversation into a clear, step-by-step action plan you can start using immediately. You will know exactly how to use free apps to measure bar velocity, how to track subjective effort alongside objective data, how to manage hypoxic tissue buildup to prevent nagging injuries, and how to use nitric oxide support strategically to improve tissue quality on both training and rest days. Stop guessing and start building. Your checklist is ready.
Every checklist item comes with actionable notes to guide you — things like "Don't forget to do this before you start," "Avoid this common mistake," or "Set a reminder for 30 days out." Nothing vague, just clear next steps.
+ 17 more action items inside...
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