When should you increase the weight? Progression made simple

Progressive overload doesn't only mean more weight

Muscle and strength grow when the training stimulus increases over time. If the load always stays the same, your body has no reason to keep adapting. That is what progressive overload means. The stimulus doesn't have to grow dramatically, and it doesn't have to grow every week. It just has to increase in some form over several weeks.

More reps count as progression too. In a study with 43 trained women and men, one group increased the weight for eight weeks while keeping the reps the same, and the other increased the reps while keeping the weight the same. Both built comparable muscle and strength (Plotkin et al., 2022). Double progression combines exactly these two routes.

The rule: when does more weight go on?

Don't increase the weight on a fixed schedule. Increase it when three things are true:

• Your technique is solid: The full movement is controlled and done without compensating.
• RIR 0 to 2: At the end of the set, you have no more than one or two reps in reserve.
• Two sessions in a row: You reach the top of your range in all sets, and not just once.

The American College of Sports Medicine guideline recommends a similar logic: if you can manage the current load for one to two reps above your target number, increase it by 2 to 10% (ACSM, 2009). My rule of two sessions in a row is a little stricter. It makes sure that a single good day doesn't count as progress.

Double progression in a worked example

First, you increase the reps within your rep range, in every set. Only when you reach the top do you increase the weight and start again at the bottom. An example for bent-over rows with 3 sets in a range of 8 to 12 reps:

From session 1 to 6, the weight didn't change, but your performance did, clearly: from 27 to 36 reps, a third more. If you multiply weight by reps, that is 1,350 kg compared with 1,800 kg. In session 7, the total weight moved, 52.5 kg × 26 = 1,365 kg, is back at roughly the starting value, just at a higher level. Then the next round begins.

How big the next step should be

As small as possible. A fixed jump of 2.5 kg is a very different step depending on the starting weight:

The first three sit comfortably within the 2 to 10% range. For lateral raises, 25% is a big jump, because dumbbells often only come in 2 kg steps. For exercises like this, a wider rep range helps, for example 10 to 15. That way you stay at the same weight for longer and only make the jump once you clearly have room to spare.

For heavy compound lifts like squats, deadlifts and bench press, the opposite approach often pays off: small weight steps of 1 to 2.5 kg instead of the full rep range, for example 100 kg × 8, then 102.5 kg × 8, then 105 kg × 8, then 105 kg × 9. These lifts respond more sensitively to big jumps, and smaller steps carry you through more weeks.

Why RIR matters for progression

Reps are only comparable if the effort stays the same. 12 reps at RIR 4 are not the same as 12 at RIR 1. If you stop far short of your limit, you reach the top of the range artificially late and create less stimulus. An analysis across many studies shows that muscle growth was greater on average the closer sets ended to failure, while strength increased similarly across a wide range (Robinson et al., 2024).

On the other hand, it isn't real progress if you only manage more reps because you now go to RIR 0 instead of stopping at RIR 3. So always compare at a similar RIR. How to judge it honestly is explained in the article RIR in strength training: how close to failure should you go?

Write progress down, don't go by feel

Without numbers, you can't follow double progression. A single good or bad day says little. Only repeated entries show a trend. For each exercise, record your best clean working set as weight times reps, for example 80 kg × 8. The free training plan template is all you need: three sessions, starting values and four weeks on one page.

Stick with a plan for at least 6 to 8 weeks before making bigger changes. Individual weeks can stay the same. Progression shows over weeks, not in every session.

When nothing moves: check in this order

If the weight and reps on an exercise haven't moved for about three weeks, that is a plateau. Before you overhaul your plan or pile on more sets, check the causes in this order:

• Technique and RIR: Are you really working in the target range, or are you stopping too early?
• Sleep and stress: How have the last few weeks been? Recovery is more often the cause than exercise selection.
• Nutrition: When building muscle, you need a slight surplus. The calorie calculator shows how much that is for you, and there is more in the article on the calorie surplus for muscle growth.
• Volume and recovery: Only then think about adding sets or, if fatigue has built up, take a deload week.

After that, only ever change one factor and give it a few weeks. Otherwise you won't know what actually helped.