Progressive overload explained simply

You've been lifting the same dumbbells for three months, and the sessions feel the same as they did in week two. Progressive overload is the fix: do a little more over time, such as an extra rep, an extra set or 2.5 kg more on the bar once you beat your target reps. It's a much simpler idea than the name suggests.

In short

Progressive overload means gradually asking your body to do a bit more than it's used to: more weight, more reps or more sets.

The American College of Sports Medicine suggests adding 2 to 10% to the weight once you can do one or two reps more than your target.

Write down what you lift. You can't add to something you can't remember.

1. What is progressive overload?

It's the idea that to keep getting stronger or building muscle, the work has to get a little harder over time.

Your body adapts to what you ask of it. Lift the same weight for the same reps every week, and once you've adapted, there's not much reason to keep changing.

The American College of Sports Medicine (ACSM) lists progressive overload as one of three core principles of strength training, alongside specificity (training for your goal) and variation (changing things over time).

"Progressive" means gradual. "Overload" means a bit more than you're used to. Not a lot more. A bit.

2. What are the ways to progress?

There are several. You only need to change one at a time.

Add weight. The classic. 20 kg becomes 22.5 kg.
Add reps. 3 sets of 8 becomes 3 sets of 10 with the same weight.
Add sets. 3 sets becomes 4.
Improve form or range. A deeper squat with the same weight is harder work.
Slow it down. A controlled lowering phase makes the same weight more demanding.

For building muscle, adding sets is worth knowing about. A 2017 review by Schoenfeld and colleagues found that more weekly sets tended to mean more muscle growth. See how many sets and reps to build muscle for more.

3. How much weight should I add, and when?

The ACSM gives a clear rule of thumb: when you can do one or two reps more than your target with a weight, on two sessions in a row, increase it by 2 to 10%. Use the smaller end for small muscles and the bigger end for big lifts.

So if your plan is 3 sets of 8 and you manage 10 on every set, it's time to go up.

In real numbers:

Squat at 60 kg: 2 to 10% is 1.2 to 6 kg. A 2.5 kg jump (one 1.25 kg plate each side) is sensible.
Dumbbell press with 12 kg: 2 to 10% is under 1.2 kg. Most gyms jump 2 kg at a time, which is more than 10%. That's normal. Use the next step, then add reps more slowly.
Smaller muscles (arms, shoulders) usually progress more slowly than legs and back.

4. What is double progression?

It's the simplest system for most beginners, and it fits neatly with the ACSM rule.

You pick a rep range, such as 8 to 12. Then:

Start with a weight you can lift for 8 reps on every set.
Each session, try to add a rep or two.
When you hit 12 reps on every set, increase the weight.
Drop back to 8 reps with the new weight.
Repeat.

You progress reps first, then weight. It means you always know what to aim for, and you never make a jump you can't handle.

The ACSM suggests that beginners use loads they can lift for 8 to 12 reps, which makes this range a natural fit.

5. How fast should I progress?

Faster at the start, slower later.

As a beginner, you may be able to add reps or weight most weeks for a while. That's normal. Some of this early progress is your body learning the movement.

Later, progress slows. You might add weight once a month, or go up in tiny steps. That's normal too.

Signs you're pushing too fast:

your form breaks down to hit the numbers
joints ache in a way that doesn't feel like normal muscle tiredness
you're failing more sets than you complete

If any of that sounds familiar, drop back a step and build up again more slowly.

6. What if I stop making progress?

Everyone stalls. Here's what to check, in this order:

Are you writing it down? People often think they've stalled when they're actually doing less than they think.
Are you sleeping and eating enough? It's hard to progress when you're run down. For eating, see how much protein you need, and speak to a registered dietitian for personal advice.
Are you resting long enough between sets? The ACSM suggests 1 to 2 minutes for muscle-building work.
Change the variable. If weight won't move, add reps. If reps won't move, add a set.
Take a lighter week. Reduce the weight or sets for a week, then build back up. Many people come back stronger.
Swap the exercise. A similar movement (dumbbells instead of a barbell, say) can get things moving again.

7. Does progressive overload apply to bodyweight training?

Yes. You just progress in different ways:

More reps: 8 press-ups becomes 12.
Harder version: press-ups on a bench, then on the floor, then with feet raised.
Slower reps: three seconds down.
More sets.

A 2017 review by Schoenfeld and colleagues found that lighter loads built similar muscle to heavier loads when the sets were taken close to failure. So a hard set of bodyweight squats still does the job, as long as it gets genuinely hard.

8. How does this fit with the UK guidelines?

The UK Chief Medical Officers recommend strength activities on at least two days a week, working all the major muscle groups. They also say any strengthening activity is better than none.

Progressive overload is just the way you make those sessions keep working. Start where you are. Add a little. Write it down.

If you have a health condition, an injury, or you're pregnant, speak to your GP or a qualified instructor before you start lifting.

Do I need an app for this?

Progressive overload only works if you know what you did last time. "I think it was 40 kg for 8?" isn't good enough when you're trying to beat it.

Options:

A notebook in your gym bag. Cheap, reliable, no battery.
Strong has a free account, with a paid PRO tier for extra charts.
Hevy describes itself as a free workout tracker for iPhone and Android.

How Reptyl helps

Reptyl Sets & Reps is built around one question: what did I lift last time, and can I beat it?

Last time, at a glance. Your previous weight and reps are there when you start a set, so you know the number to beat.
Bests. A new best gets a banner.
Rest timer. It starts after each set, so you don't rush back or sit for six minutes.
Weekly volume. See how many sets each muscle group got this week, if you're progressing by adding sets.

Your log syncs through your own iCloud account, and we never see it. It's a one-off purchase with no subscription and no adverts. The Sets & Reps page has the details.

Next, read how long to rest between sets.

Quick answers

What is an example of progressive overload?

Squatting 40 kg for 3 sets of 8 this week, 3 sets of 9 next week, 3 sets of 10 the week after, then moving to 42.5 kg and starting again at 8 reps.

How often should I increase weight?

When you can do one or two reps more than your target, the ACSM suggests increasing the load by 2 to 10%. For beginners that can be weekly at first. Later, it slows down.

Should I add weight every session?

No. Add weight only when you've hit the top of your rep range on every set. Most sessions, you're aiming to add a rep or two, not more plates.

Can you do progressive overload without adding weight?

Yes. Add reps, add sets, slow the reps down, or move to a harder version of the exercise.

Want to know what to beat next session? See Reptyl Sets & Reps