How to track progressive overload

To keep getting stronger, you have to do a bit more over time: more weight, more reps or more sets. That only works if you know, set by set, what you did last time.

Say your program adds weight once you hit 8 reps on every set, and last week your final set stopped at 7. That 7 is what tells you to keep the weight. Most of what follows works with a paper log. I build PRGRES, a workout tracker for iPhone, and one section shows how it turns your last session into a target for the next one.

The ways to progress

The American College of Sports Medicine's position stand on resistance training names progressive overload, specificity and variation as the main principles of progression (ACSM, 2009). In the gym, you can add overload in four ways:

• Add weight at the same reps: 80 × 8 becomes 82.5 × 8.
• Add reps at the same weight: 80 × 6 becomes 80 × 7.
• Add sets: 3 × 8 becomes 4 × 8. For how many weekly sets make sense, see how many sets per week you need.
• Train the muscle more often. A 2025 meta-regression of 67 studies found that more frequent training consistently added strength, but found no consistent effect on muscle size (Pelland et al., 2025). I treat an extra day mostly as a place to fit more sets.

Some lists add shorter rest as a fifth. The ACSM position stand recommends short rest for muscular endurance work. For muscle growth, a 2024 meta-analysis found a small benefit to resting longer than 60 seconds and no clear difference beyond 90 (Singer et al., 2024). So I'd rest at least 60 to 90 seconds between working sets and progress in the four ways above.

Adding reps counts

The usual picture of progress is more weight on the bar. Plotkin et al. (2022) tested the alternative. Forty-three lifters with at least a year of lower-body training did four sets each of back squats, leg extensions and two kinds of calf raise, twice a week for 8 weeks. One group added weight and stayed within 8–12 reps. The other kept its starting weight all eight weeks and added reps.

Both groups grew and got stronger by about the same amount. Growth in one quad muscle (the rectus femoris) leaned slightly toward the reps group, and Smith machine squat 1RM leaned slightly toward the weight group. The authors called the differences of questionable practical significance.

So a week where the bar didn't get heavier still counts, as long as you got a rep more. You'll only know that if you wrote last week's reps down.

What to write down

For every working set, write down the weight, the reps and, if you can, how hard it was. Log each set separately rather than as “3 × 8”. If your third set was 80 × 6, that 6 is the number to beat next time. Mark warm-up sets as warm-ups so they don't get mixed into your working sets.

For effort, the usual scale is RPE based on reps in reserve: RPE 10 means no reps left, RPE 9 means one left, RPE 8 means two (Zourdos et al., 2016). Expect your ratings to be rough. Across 12 studies, people guessed about one rep fewer than they actually had left, and their guesses got better closer to failure and on sets of 12 reps or fewer (Halperin et al., 2022). If you log RPE, the RPE calculator turns a set like 80 × 8 at RPE 8 into an estimated 1RM and a load for any other reps and RPE.

Writing it down may also help on its own. A 2016 meta-analysis of 138 randomized studies found that interventions that got people to monitor their progress helped them reach their goals, and the effect was larger when progress was physically recorded (Harkin et al., 2016). Those studies covered goals in general, not lifting in particular.

Log the bad sessions too, with a note on why (short sleep, a sore shoulder). When a lift stalls later, that note is how you tell a program problem from a rough week.

Double progression, with numbers

Double progression is the method I'd start with once adding weight every session stops working. Pick a rep range, say 3 sets of 6–8. Keep the weight the same until every set reaches the top of the range. Then add the smallest step you can and start again from the bottom of the range.

From session 1 to session 5 the bar didn't change, but you did six more reps across the three sets. Without a log, sessions 2 to 4 feel like the same workout.

The ACSM position stand gives a similar rule: add 2–10% once you can do one or two reps more than your target in two sessions in a row, with smaller jumps for exercises that use less muscle.

When to add weight, and how much

New lifters can often add weight nearly every session for a while. Linear programs are built on that. StrongLifts 5×5, for example, adds weight to a lift whenever you completed all five sets of five on it last time. When that starts failing on a lift, I'd move that lift to a rep range and double progression.

Jump size matters most on light lifts. Adding 2.5 kg is 1.8% on a 140 kg squat but more than 6% on a 40 kg overhead press, so a jump that works on squats can stall a press. Fractional plates, often called microplates, fix that: a pair of 0.5 kg plates adds 1 kg to the bar, and a pair of 1.25 lb plates adds 2.5 lb. For the standard plates underneath, the plate calculator shows what goes on each side for a given total, down to 1.25 kg or 2.5 lb plates.

Dumbbell racks usually go up in fixed jumps of 2 or 2.5 kg per hand, which is 10% or more on a 20 kg dumbbell. Add reps first, and move up once you're a rep or two past the top of your range, so the heavier pair still lands inside it.

How PRGRES suggests the next set

For weight-and-reps exercises, each set row in a PRGRES workout has a Suggested column. It looks at the matching set from your last session of that exercise (set 2 is compared with last time's set 2, warm-ups with warm-ups), keeps the reps, and moves the weight based on the RPE you logged for that set. Here is the rule, using 80 × 8 as last time's set:

A step is 1.25 kg when the weight is under 40 kg and 2.5 kg from 40 kg up. Tap a suggestion to see what you did last time, for example “Prev: 80 × 8”. When you start from a plan or a recent workout, every set is already filled in with last session's weight and reps, so you change only the numbers that moved.

Two more things can show up while you train:

• If you log RPE 9 or higher on either of the first two sets of an exercise and still have sets left, a banner suggests taking about 5% off the rest.
• If an exercise's estimated 1RM has moved less than 1% over your last three sessions within 21 days, a “Progress Stalled” card suggests a deload, a different rep range or an extra set. It compares the estimated 1RM of your best set each session, so one more rep on that set counts as progress.

Give the exercise a rep range in your plan and the Suggested column runs double progression for you instead: it keeps the weight and suggests one more rep per set until every working set reaches the top of the range, then adds one step and drops back to the bottom. After 80 × 7 on a range of 6–8, it shows → 80 × 8. The range takes priority over RPE. Without a range, logging RPE is what keeps the weight steady: a set rated 8.5 or 9 keeps the same weight next time. And if you own microplates, type the weight you want. The suggestion only knows 1.25 and 2.5 kg steps.

Reading progress over months

From one session to the next, compare the same sets. Over months you need one number that works across rep counts, because 80 × 8 and 82.5 × 6 aren't directly comparable. Estimated 1RM does that job. With the Epley formula, 80 × 8 works out to about 101 kg and 82.5 × 6 to 99 kg, so the small dip in session 6 of the table above is expected. Over a couple of months, the line should go up. The one rep max calculator does the math for any set.

PRGRES uses the Epley formula for its estimated 1RM charts and PRs. It flags a PR when you set a new estimated 1RM, lift your heaviest weight on an exercise, or beat your best session volume for it.

When to deload

A deload is a lighter stretch of training, usually a week, with fewer sets, less weight or both. You'll often see advice to take one every 4–6 weeks. The evidence for a fixed schedule is thin. In the most direct trial I know of, Coleman et al. (2024) had 39 trained lifters either train straight through a 9-week program or take a full week off at the halfway point. Lower-body muscle growth was about the same in both groups, and the group that took the week off gained less lower-body strength. A week off isn't the same as a lighter week, so the trial doesn't tell you whether a lighter week helps. It also gives no support for deloading on a fixed schedule.

Since the studies don't settle it, I use my own rule of thumb: deload when a lift stalls for two or three sessions or everything feels heavy. For one week, cut your sets roughly in half at the same weights, or keep the sets and take off about 10%. Then go back to where you were.

Where to start

Pick one lift you train every week. Do 3 sets of 6–8, log every set, and add 2.5 kg (less on a light lift) once all three sets reach 8. After a month, compare your estimated 1RM with your first session. If it hasn't moved, check your log for missed or rough sessions before you change the program.

Sources

1. American College of Sports Medicine. Progression models in resistance training for healthy adults. Med Sci Sports Exerc. 2009;41(3):687–708. doi:10.1249/MSS.0b013e3181915670
2. Pelland JC, Remmert JF, Robinson ZP, Hinson SR, Zourdos MC. The resistance training dose response: meta-regressions exploring the effects of weekly volume and frequency on muscle hypertrophy and strength gains. Sports Med. 2026;56(2):481–505 (online December 4, 2025). doi:10.1007/s40279-025-02344-w
3. Singer A, Wolf M, Generoso L, et al. Give it a rest: a systematic review with Bayesian meta-analysis on the effect of inter-set rest interval duration on muscle hypertrophy. Front Sports Act Living. 2024;6:1429789. doi:10.3389/fspor.2024.1429789
4. Plotkin D, Coleman M, Van Every D, et al. Progressive overload without progressing load? The effects of load or repetition progression on muscular adaptations. PeerJ. 2022;10:e14142. doi:10.7717/peerj.14142
5. Zourdos MC, Klemp A, Dolan C, et al. Novel resistance training-specific rating of perceived exertion scale measuring repetitions in reserve. J Strength Cond Res. 2016;30(1):267–275. doi:10.1519/JSC.0000000000001049
6. Halperin I, Malleron T, Har-Nir I, et al. Accuracy in predicting repetitions to task failure in resistance exercise: a scoping review and exploratory meta-analysis. Sports Med. 2022;52(2):377–390. doi:10.1007/s40279-021-01559-x
7. Harkin B, Webb TL, Chang BP, et al. Does monitoring goal progress promote goal attainment? A meta-analysis of the experimental evidence. Psychol Bull. 2016;142(2):198–229. doi:10.1037/bul0000025
8. Coleman M, Burke R, Augustin F, et al. Gaining more from doing less? The effects of a one-week deload period during supervised resistance training on muscular adaptations. PeerJ. 2024;12:e16777. doi:10.7717/peerj.16777