Who is double progression for?

It suits you particularly when load jumps from session to session become too large. That often applies to isolation work, machines and hypertrophy training, but it can work on compound lifts too. What decides it is less your training age than whether the chosen rep range allows a sensibly finer progression.

How wide should the rep range be for double progression?

There is no scientifically prescribed range. In practice, corridors like 6–10, 8–12 or 10–15 work well, because they offer enough room for rep progress without letting the exercise shift between very different loading characters.

Double Progression Explained: The Method That Fits Between Linear and Periodization

With linear training, progress is easy to see:

80 kg → 82.5 kg → 85 kg.

At some point, though, that exact logic gets too coarse.

Maybe you get 80 kg for eight clean reps, but 82.5 kg drops your rep count immediately. Or the next dumbbell jumps from 8 to 10 kg — a load increase of 25 %.

Double progression solves that with a simple idea:

Before you raise the weight, you build reps first.

What is double progression?

You set a rep range for an exercise, for example:

3×8–12

Then progression runs in two stages.

The weight stays the same, the reps go up.
Once you reach the top of the range by your defined rule, the weight goes up.
With the new load you start lower in the range again.

For example:

Session	Performance
1	80 kg: 8 / 8 / 8
2	80 kg: 9 / 8 / 8
3	80 kg: 10 / 9 / 8
4	80 kg: 11 / 10 / 9
5	80 kg: 12 / 12 / 12
6	82.5 kg: 9 / 8 / 8

So “double” does not refer to two training days or two exercises.

It refers to two progression variables:

reps → load

Why not just add weight every week?

As long as small load jumps work, there is nothing wrong with that.

Linear progression is attractive because it is unambiguous and demands few decisions.

The problem starts when the smallest available weight increment is larger than your actual performance gain.

An example:

You do lateral raises with 8 kg per hand.

The next dumbbell weighs 10 kg.

That is not “just 2 kg more” — it is 25 % more load.

If instead you go from 12 to 15 controlled reps at 8 kg, you build additional capacity before attempting that large jump.

Which is exactly why double progression works so well on isolation work and machines.

But it can make sense on compound lifts too, once you can no longer add load sensibly in every session.

Adding reps can be just as much real progression

The direct research on this is surprisingly practical.

Plotkin et al. (2022) had trained participants progress for eight weeks either through more load at a constant rep target or through more reps at a largely constant load.

Both groups improved muscle size, strength and endurance. Individual differences went slightly in different directions, but they were small and not practically clear-cut.

Chaves et al. (2024) likewise compared the two strategies directly. There too, load and rep progression produced very similar improvements in muscle cross-sectional area and strength.

So the clean conclusion is not:

Reps and weight are exactly identical under all conditions.

It is:

Systematically adding reps is a fully valid form of progressive overload — especially for hypertrophy.

For maximal 1RM strength, regular work with heavier loads remains more specific.

→ What is progressive overload?

Double progression vs. other methods

Feature	Linear progression	Double progression	Percentage-based (e.g. 5/3/1)
Primary rule	raise load regularly	reps first, then load	load derived from a planning number / cycle
Granularity	limited by the smallest weight increment	very fine, steered through reps	depends on the percentage and TM system
Strength	maximum simplicity	flexible, no 1RM calculation needed	clearly structured loads over the long run
Especially suited to	fast early load progression	hypertrophy, machines, isolation	longer-term strength programs
1RM test needed?	no	no	not necessarily; the TM can be estimated

So double progression really does sit between two extremes:

It is more flexible than “add weight every time”, but considerably simpler than a full periodization scheme.

Worked examples with real numbers

Example 1: Bench press (8–12 reps, 3 sets)

You start at 80 kg.

Week	Set 1	Set 2	Set 3	Action
1	80×9	80×8	80×8	hold
2	80×10	80×9	80×8	hold
3	80×11	80×10	80×9	hold
4	80×12	80×11	80×10	hold
5	80×12	80×12	80×12	increase
6	82.5×9	82.5×8	82.5×8	new cycle

The table looks very tidy.

Your actual training will not always be.

Maybe in week 3 you suddenly get less because you slept badly. That does not break the method. What matters is the trend across several sessions.

Example 2: Lateral raises (12–15 reps)

Session	Performance	Action
1	8 kg: 13 / 12 / 12	hold
2	8 kg: 14 / 13 / 12	hold
3	8 kg: 15 / 14 / 14	hold
4	8 kg: 15 / 15 / 15	increase
5	10 kg: 12 / 11 / 10	new cycle

That last step shows a typical problem.

The jump to 10 kg can be so large that you drop below the bottom of the range on the third set.

You then have several options:

use microloading where possible
choose a slightly wider rep range
run only some of the sets with the new load at first
or keep improving quality, range of motion and reps at 8 kg

Double progression is a rule, not an obligation to take an unsuitable weight jump.

Example 3: Squat (4–6 reps, strength focus)

Week	Reps per set	Action
1	140 kg: 4 / 4 / 4 / 4	hold
3	140 kg: 5 / 5 / 5 / 4	hold
5	140 kg: 6 / 6 / 5 / 5	hold
7	140 kg: 6 / 6 / 6 / 6	increase
8	145 kg: 4 / 4 / 4 / 4	new cycle

That can work.

For very advanced lifters, though, the question eventually becomes bigger than “more reps or more weight”: at that point volume, specificity and fatigue also have to be planned across longer stretches.

When double progression works — and when it doesn’t

Works best for:

Exercises with coarse weight increments.

Dumbbells and machines are the classic case.

Hypertrophy work.

A rep range gives enough room to raise performance without constantly having to force load.

Self-directed training.

You need no percentage table and no genuine 1RM test.

Compound lifts after the very fast linear phase.

Bench press or squats can be kept progressive for longer this way too, as long as the rep range fits the goal.

Works less well for:

Very low rep ranges.

1–3 reps simply offer little room for rep progression.

Competition peaking.

If maximum strength has to be shown on a specific date, you also need a plan for volume and specificity over time.

Exercises whose technique changes a lot as reps rise.

If eight clean reps are a completely different movement from fifteen exhausted ones, the range you chose may be too wide.

The recommended transition

A useful sequence can look like this:

While small load jumps work: linear progression.

When load jumps get too coarse: double progression.

When even that stops being enough on the big lifts: a more complex weekly or block structure.

Worth noting: double progression often remains sensible for accessories even when your main lifts have long since been periodised.

How wide should the rep range be?

There is no study proving that a rep corridor has to be exactly four reps wide.

In practice, ranges like these are easy to manage:

4–6
6–10
8–12
10–15
12–20

The wider the range, the larger the difference between the bottom and the top end can become.

6–15 is not automatically wrong. But the same exercise can feel considerably different at six heavy reps versus fifteen long ones.

Which is why mid-width ranges are often easier to steer.

The most common mistake: reps go up, but so does effort

Suppose you do:

Week 1: 80 kg × 8 at 3 RIR

Week 2: 80 kg × 9 at 1 RIR

Formally, you progressed.

But part of that difference simply comes from training harder.

For a clean comparison, technique, range of motion and proximity to failure should stay roughly comparable.

That does not have to be accurate to the decimal.

Double progression should just not come to mean:

forcing one more rep every week, however ugly it gets.

Automating double progression

In hitPR, double progression can be expressed as a clear if-then rule:

Top of the range reached under the defined condition → raise load → reset the rep target.

That condition can be stricter or more flexible.

For example:

every set has to reach the top of the range
or a defined total rep count is enough
and an RPE/RIR brake can additionally stop a set you only just got through from automatically triggering the next increase

The advantage of an app is not that it makes double progression “better”.

It only saves you from having to remember, across ten exercises, which dumbbell was 12/11/10 last time and which was 15/15/15.

Further reading:

Sources

Plotkin DL, Coleman M, Van Every D et al. (2022). Progressive overload without progressing load? The effects of load or repetition progression on muscular adaptations. PeerJ, 10:e14142.
Chaves TS et al. (2024). Effects of Resistance Training Overload Progression Protocols on Strength and Muscle Mass. International Journal of Sports Medicine.
Currier BS, D’Souza AC, Fiatarone Singh MA et al. (2026). Resistance Training Prescription for Muscle Function, Hypertrophy, and Physical Performance in Healthy Adults. Medicine & Science in Sports & Exercise, 58(4):851–872.
Helms ER, Morgan A, Valdez A (2019). The Muscle and Strength Pyramids: Training. 2nd Edition.

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