What is RM
RM (repetition maximum) links load and rep count: the most reps you can complete at a given weight with sound technique — or the heaviest weight you can lift for a target number of reps.
1RM is load for one rep; 5RM and 10RM are loads for roughly five or ten reps to failure or near it. These concepts help compare training stress across sessions and lifts.
Why counting reps is not enough
Imagine two people. Both bench press for 10 reps. On paper the workout looks identical. One uses 40 kg, the other 100 kg.
The stress on the body is obviously very different.
That is why effective training tracks not only reps but the load used.
RM ties those two variables together and gives a clearer picture of intensity.
How reps change when load changes
There is a simple pattern: heavier load usually means fewer reps.
For example:
- 100 kg — 1 rep
- 90 kg — 3–4 reps
- 80 kg — 8–10 reps
- 70 kg — 12–15 reps
Exact numbers differ between people, but the principle holds: as working weight goes up, rep count usually goes down.
You do not always need your absolute max
Many believe they must find a true 1RM to train well. Most people do not need that.
First, near-max loads demand solid technique.
Second, they add stress on joints, connective tissue, and the nervous system.
Third, for most goals it is enough to know your working rep ranges.
For example:
- what you can lift for 5 reps
- what you can lift for 8 reps
- what you can lift for 10 reps
That is usually plenty to build an effective program.
RM and load progression
One main benefit of RM thinking is tracking progress.
A month ago you squatted 60 kg × 8. A few months later: 70 kg × 8. That is a strength gain.
Progress is not only more load. 60 kg × 8 → 60 kg × 12 is improvement too.
RM framing helps you judge whether training is working.
BALANS in practice
Most people do not need regular max tests. It is more useful to know working weights and progress steadily.
Any of these can signal positive change:
- add load
- add reps
- improve exercise technique
Each moves you toward your goal — without hunting an “absolute max” in the gym every month.