Program Design
· 5 min read
Double Progression, Explained
Double progression builds reps within a range before increasing weight. Follow a worked example, use effort targets, and learn what to do when reps stall.
By Iron Progression
Updated
Double progression is a method of progressive overload that progresses reps first, then load. Work within a chosen rep range at the same weight. Once the required sets reach the top of that range at the intended effort, increase the load and build reps again.
It turns “add weight when you can” into a repeatable rule. It does not guarantee a new rep every workout, and it does not make a load increase safe regardless of technique or recovery.
How it works
For a simple example, prescribe three working sets of 8-12 reps with about 2 reps in reserve:
- Choose a load that allows all three sets within the range at the intended effort.
- Keep the load and build reps over later sessions. Do not force extra reps by abandoning the effort target or shortening the movement.
- When all three sets reach 12 with the intended technique and at least the prescribed reserve, take a small, practical load increase.
- With the new load, expect fewer reps. Check that you can still stay within the range at the intended effort.
A worked example
These are illustrative checkpoints, not consecutive sessions or a promised rate of progress. The same load is used for each of the three sets.
| Checkpoint | Load | Reps across three sets | Next decision |
|---|---|---|---|
| Starting point | 100 lb | 8, 8, 8 | Keep the load; build reps |
| Later session | 100 lb | 10, 9, 8 | Keep the load |
| Near the ceiling | 100 lb | 12, 11, 10 | Keep the load; not all sets are at 12 |
| Range completed | 100 lb | 12, 12, 12 | Increase only if technique and effort also meet the plan |
| After an increase | 105 lb | 9, 8, 8 | Build reps at the new load |
The 5 lb increase is an example, not the right increment for every lift. If the new load drops you below eight reps or makes the work much harder than prescribed, use a smaller increment if available or revise the prescription.
Why lifters use it
- The decision rule is visible. You know which performance would justify adding load.
- Reps can progress between load increases. You do not need to force a weight jump every session.
- Different days fit the same framework. Repeating a result is allowed; the method is not a requirement to improve on demand.
- It is easy to review. A log of load, reps, and effort shows whether you met the rule.
Choosing your rep range
Choose a range that fits the movement, goal, and available load increments. For example:
- 3-6 reps can suit strength-focused practice with heavier loads.
- 6-10 or 8-12 reps are common options for many compound and accessory exercises.
- 10-15 or higher can be practical for isolation work or equipment with large weight jumps.
These are examples, not exclusive zones for strength or muscle growth. A wider range allows more rep progression before adding weight. A narrower range may need smaller load steps. Comfort, technique, and your broader program still matter.
Where effort fits in
Suppose you reach 12, 12, 12, but every set is at 0 RIR when the plan called for 2 RIR. You reached the rep ceiling, not the full prescription. Repeating the load, or adjusting it if needed, is more consistent with the plan than automatically increasing it.
Completing those reps at about 2 RIR or with more reserve supports a small increase. Because effort ratings are estimates, consider the pattern across sets and sessions rather than treating one uncertain rating as a precise test.
What if one set lags behind?
Under the all-sets rule used here, 12, 11, 10 means keeping the load. Do not add extra reps to the first set at the expense of the remaining work simply to make one number look better.
Other programs use a top-set rule, a total-rep threshold, or set-by-set progression. Those can be valid approaches, but they are different rules. Decide which one you are following before interpreting the result.
What if progress stalls?
One flat session is not enough to diagnose a stall. After repeated comparable sessions without progress, check rest periods, load increments, technique, sleep, and the amount of work in the program. Do not assume that adding sets or training to failure is always the answer.
If a weight increase is too large, smaller increments or a different rep range may help. If fatigue is accumulating, workload may need to come down. Pain or an injury concern calls for a different decision than a routine training plateau.
Run the rule in your log
Iron Progression supports reps-first progression, rep ranges, optional effort tracking, and configurable load steps. The exact next target depends on the chosen settings and logged session, not just the simple example above. Explore progression features or download the Android app. iOS is coming soon.