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Tracking the right signals, reading whether the program is working, and knowing when to hold, deload, or change it — the feedback step that closes the design loop.
A program is a hypothesis; monitoring tests it. Step 7 of the design process collects data and feeds the next cycle.
What to track (see body-metrics-overview):
Signs the program IS working: performance trending up over weeks (allowing for noise), recovery holding, adherence high, the goal metric moving on re-test.
Signs it is NOT working: the goal metric flat or declining across a mesocycle despite effort; rising RPE at the same loads; mounting fatigue, soreness, poor sleep, or lost motivation; or, conversely, sessions feeling trivially easy (under-dosed).
When and how to change: don't chase noise — judge over weeks, not single sessions. Then in order: if fatigue-driven, deload; if under-recovery/adherence, fix inputs; if truly stalled with good inputs, change a variable (managing-plateaus) or progress the periodization; if the plan no longer matches the goal/training age, redesign from a fresh needs analysis. A working program is changed because progress slowed, not out of boredom — but planned variation is built in precisely so trained lifters don't reach that point prematurely.
Educational content only — not medical advice. Always consult a qualified professional for individualized guidance, especially around injury, pregnancy, or medical conditions.