Double Progression Method: How It Works, Example and When to Add Weight

Double progression is a way of progressing in two steps: first you add reps with the same weight, and once you reach the top of your rep range, you add weight and drop back to the bottom. If your program calls for 3 sets of 8–12 and you're now getting 12 on all three without going past the planned effort, it's time to go up in weight and work from around 8–9 reps again.

It's probably the simplest way to apply progressive overload without a spreadsheet: the rep range itself tells you when to move up. One thing worth saying upfront: double progression is a coaching method, not a protocol that has been studied as such. What we do have is research on its building blocks, and it fits well.

How it works, step by step

1. Pick a rep range for each exercise, for example 8–12.
2. Pick a target effort, measured in RIR (reps in reserve). For example, ending each set at RIR 1–2.
3. Start with a weight that puts you near the bottom of the range at that RIR.
4. Keep the weight and add reps from one session to the next. One extra rep on one set counts.
5. Once you reach the top of the range at your target RIR, add the smallest weight jump available.
6. Go back to the bottom of the range with the new weight and repeat.

RIR is what makes the method work. Without it, adding reps can simply mean grinding harder every week until you hit failure. With it, reps go up because you've got stronger, not because you're pushing harder. If you use RPE instead of RIR, the logic is the same (see RIR vs RPE).

Week-by-week example: bench press 3 × 8–12

Target: 3 sets of 8–12 reps at RIR 1–2. Strict version: you move up when all three sets reach 12.

Week	Weight	Reps (set 1, 2, 3)	Next step
1	60 kg	10, 9, 8	Hold and add reps
2	60 kg	11, 10, 9	Hold and add reps
3	60 kg	12, 11, 10	Hold and add reps
4	60 kg	12, 12, 11	Hold and add reps
5	60 kg	12, 12, 12	Go up to 62.5 kg
6	62.5 kg	10, 9, 9	Hold and add reps
7	62.5 kg	11, 10, 9	Hold and add reps

Three things the table shows:

• You don't need to add reps on every set every week. One more rep on any set is progress.
• Reps drop when the weight goes up. With a small jump, losing 2–3 reps per set is normal; if you fall below the bottom of the range, the jump was too big.
• Progress isn't linear. Some weeks nothing changes. What matters is the trend over several weeks.

How much weight to add

There's more convention than science here. The usual rule is the smallest jump your equipment allows, which in practice tends to land between 2.5% and 5% of the load.

The most cited reference is the 2009 ACSM position stand on progression models: it recommends a 2–10% load increase once you can perform the current weight for one or two reps over the target. That is essentially the same idea as double progression.

Equipment	Typical jump	Notes
Barbell, upper body	2.5 kg / 5 lb	With microplates, 1 kg / 2.5 lb
Barbell, lower body	2.5–5 kg / 5–10 lb	Squats and deadlifts handle bigger jumps
Dumbbells	1–2 kg / 2.5–5 lb per dumbbell	At light weights the relative jump is large
Machines and cables	One plate	Some machines offer half plates

Dumbbells are the tricky case: going from 10 to 12 kg is a 20% increase. That's why exercises with big jumps work better with wider ranges (for example 10–15 or 12–20), which leave room to absorb the drop in reps.

Which rep range to choose

For muscle growth, the exact range matters less than people tend to think. A 2017 meta-analysis found that muscle growth was similar with low loads (60% of max or less) and high loads when sets were taken to failure, while maximal strength improved more with heavy loads (Schoenfeld et al., 2017). A later review by the same group proposes that hypertrophy can be achieved across a wide spectrum of loads (Schoenfeld et al., 2021).

So the range is mostly a practical choice. Common coaching guidelines:

• Heavy compound lifts (squat, deadlift, presses): low, narrow ranges such as 5–8 or 6–10.
• Mid-sized movements (rows, leg press, dumbbell presses): 8–12.
• Isolation work (curls, lateral raises, extensions): 10–15 or 12–20.

A range of about 4–5 reps gives you room to progress for several weeks at the same weight without a single jump eating the whole range.

Why it works: what the research says

No trial has compared double progression with other methods. The closest study is Plotkin et al. (2022): 43 people with at least a year of training experience trained legs for 8 weeks. One group added load while keeping reps constant; the other kept the load and added reps. Muscle growth and strength were very similar between groups, with a slight edge in rectus femoris growth for the reps group and in strength for the load group, both of questionable practical significance. The authors conclude that progressing reps or progressing load are both viable strategies.

Double progression simply combines the two: you add reps, and when you run out of range, you add load.

What to do when you stall

By convention, a stall means two or three sessions without adding a single rep at the same weight. Before changing anything:

1. Check the basics: sleep, food, stress, and whether your technique has drifted.
2. Check your RIR. If you've been ending sets at failure for weeks, fatigue may be masking progress (more in training to failure).
3. Look at volume. Too many sets can stop you recovering; too few may not be enough stimulus. See how many sets per muscle per week and MEV, MAV and MRV.

If all of that checks out, common options are:

• Drop the load by 5–10% and build back up.
• Switch rep ranges, for example from 8–12 to 6–10.
• Take a deload week and pick up again.
• Swap the exercise variation (incline instead of flat bench, for example).

Double progression variations

These are all coaching conventions; none has been shown to beat the others.

Variation	When you add weight	Upside	Downside
Strict	Every set hits the top	Solid progress	Slower
First set	The first set hits the top	Moves up sooner	Later sets may lag behind
Total reps	Total reaches a number (36 for 3 × 8–12)	Flexible	You have to add it up each time
Set by set	Each set progresses its own weight	Very precise	Harder to log

How MUTARA applies double progression

In MUTARA every exercise in your routine has its own rep range and target RIR, and you log each set with its weight, reps and RIR. From that, the app suggests what to do next session using this same logic: keep the weight and add a rep while you're below the top of the range, then add weight and go back down once you've closed the range. The "Next" chip shows the weight for your next session, and the exercise card explains why.

All you have to do is train and be honest about your RIR.