DELT's next move is always grounded in evidence — the methodology and science that many researchers have built up. The app guides your progress whether or not you know any of it. Even so, the more you understand the reasons, the surer each step becomes.
Progressive Overload: An Overview
A systematic treatment of progressive overload — from definition to implementation to deload. It compares Double Progression, Linear Progression, Periodization, and Autoregulation (RPE/RIR), and lays out the applicable conditions for each.
Start with the overview →How to Structure a Training Routine
In a routine, your goal (rep range) and experience level (volume) determine the split, progression, and deload. It lays out how to build a split, frequency, and progression from goal and level, and how it maps to DELT's four starter templates.
Using DELT With a Personal Trainer
A trainer and DELT overlap because their roles differ. Recording the gaps between sessions, carrying the trainer's plan, offloading the busywork, and sharing the sourced why — how a trainer and DELT mesh and complement each other, organized with verified evidence.