One exercise. Your own CSV. Comparable workload and estimated-strength evidence, computed in this browser.
Use ISO dates and one repeated exercise. Working sets only; two or more sessions required.
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Analyze a repeated exercise to compare training volume with an estimated one-repetition maximum across time.
Epley is an estimate, not a measured maximum, training prescription, medical conclusion, or proof of intent. No fitness service is connected.
A heavier bar can arrive with fewer repetitions. Volume compares total loaded work; estimated 1RM approximates peak strength from one set. Read both before calling a session progress or regression.
Against the first 3 x 8 x 80 kg session, volume moves from 1920 to 2100 (+9.38%) while the estimate moves from 101.33 to 105.00 kg (+3.62%). Different magnitudes are expected because the formulas answer different questions.
No. Volume reflects total loaded repetitions. Estimated 1RM emphasizes load and repetition count in one set. One can rise while the other falls, so the ledger preserves both signals.
No. It may be a planned deload, fatigue management, changed technique, or incomplete data. The calculator reports the mathematical direction and does not infer intent.
No. Epley is a formula-based estimate, not a measured maximum, coaching decision, or medical recommendation. Use it as one comparison signal within consistent logging conditions.