What your workout numbers actually tell you
Start with the question you want to answer. Last session’s sets help you compare the next session; volume describes recorded work; an estimated one-rep max puts different rep counts on one scale. None tells the whole story alone.
Choose a metric for a specific question
| Your question | Start with | Keep consistent |
|---|---|---|
| What did I do last time? | Weight and reps for each completed set | Exercise, equipment and set order |
| Did recorded work change? | The sum of weight × reps | Units, load convention and included sets |
| How do sets with different reps compare? | An estimated one-rep max | Formula, exercise and comparable effort |
| Am I keeping a consistent record? | Completed sessions and dates | What counts as a completed session |
| How are my measurements changing? | Separately logged body measurements | Measurement method and conditions |
Read the sets before the headline number
Suppose your last three sets were 60 kg × 8, 60 kg × 8, and 60 kg × 7. This time you record three sets of 60 kg × 8. The useful observation is one additional recorded rep in the third set. The exercise, load and number of sets stayed the same. That is more specific than saying “a better workout.”
Flame’s Previous column uses the latest completed workout containing the same exercise and eligible completed normal working sets. It does not automatically choose your best-ever set or restrict the lookup to the same routine. Warm-ups and unfinished sets are excluded from that history lookup. See how previous sets work for the exact matching rules.
A different machine, shorter range of motion, changed rest period or different exercise order can change the meaning of the comparison. Record context before interpreting a number as a change in strength.
Volume is a sum, not a score for workout quality
For weighted sets, recorded volume is the sum of load × repetitions. The earlier session totals 60 × (8 + 8 + 7) = 1,380 kg. The later session totals 60 × 24 = 1,440 kg. That is 60 kg more recorded volume, or about 4.35%.
Adding a fourth set would also raise volume. Switching to an exercise with larger load numbers might raise it further. Neither comparison, by itself, establishes more muscle growth or a better session.
Use the workout volume calculator to check a session with a consistent unit and inclusion rule. For dumbbells, keep your per-hand or combined-load convention consistent; for machines, do not treat identical stack labels on different machines as identical resistance. A simple weight × reps total also does not capture unentered bodyweight.
Estimated 1RM lets you compare rep ranges, with limits
Flame’s strength history uses the Epley equation: estimated 1RM = weight × (1 + reps ÷ 30). A 60 kg × 8 set gives 76 kg. A 62.5 kg × 6 set gives 75 kg. In this example, the heavier set produces a slightly lower estimate because the rep count changed.
These are model outputs, not measured maximum lifts. Effort, technique and rep range can affect the comparison. Do not treat an estimate as an instruction to attempt that load.
In the reviewed Flame code, this chart takes completed normal sets with positive load and reps from completed workouts. It keeps the highest estimate for each exercise on each calendar date. Two sessions for the same exercise on one date therefore share a daily best point. That is different from showing every set or every session.
The one-rep-max calculator lets you inspect estimates. When comparing it with an app chart, use Epley and the same load, reps and units before assuming the chart is wrong.
Keep body measurements separate from lifting records
Flame supports logged body measurements, including weight, body-fat percentage and circumferences. These are entered records; a stronger set does not automatically measure a change in body composition. Check that measurements use the same method before comparing them over time.
A personal-record label also needs its definition. Flame tracks maximum weight, maximum reps and estimated 1RM as separate record types. A maximum-reps record can occur at a lighter weight. Read the weight and reps together before treating it as an all-purpose strength record.
A repeatable review you can do with any log
- Pick one exercise you performed under comparable conditions.
- Write the last and current completed sets side by side, including units and any important context.
- Calculate volume using the same set-inclusion rule on both sides.
- If rep counts changed, compare the same estimated-1RM formula as an additional view.
- Keep an unexplained change as a question in your notes rather than turning it into a result claim.
Use the workout log for the side-by-side record. This process works without installing Flame; the app keeps previous sets near the fields where you log the next ones.