Use reps in reserve
Ask how many more clean reps you could do at the end of a set. Two or three left is ideal for most work, occasionally taking isolation moves to true failure to calibrate what close really feels like.
How do I know if a set was hard enough?
A set is hard enough when you finish within 0 to 3 reps of failure, with reps slowing and form starting to fight you.
The quick answer
Judge it by reps in reserve. A productive set ends when you have about 0 to 3 good reps left, which shows up as the bar slowing down, reps getting grindy, and form needing real focus to hold. If the last rep looks as smooth and fast as the first, you left too much in the tank and should add weight or reps.
How to think about it
Watch rep speed
As you near failure the concentric slows even when you push maximally. That bar slowdown on the last one or two reps is the clearest sign you are in the effective range.
Take a set to failure to calibrate
Beginners chronically overestimate effort. Once, on a safe machine or isolation lift, go to true failure so you learn how far off your usual stopping point really was.
Do this
- Estimate reps leftAt the end of each set, honestly guess how many more you had. Aim for 0 to 3.
- Watch for the grindIf reps still fly up, the set was too easy. Add load next time.
- Calibrate with a failure setOnce in a while hit true failure on a safe lift to recalibrate your gauge.
- Log and compareTrack reps in reserve so you can push effort up over the weeks.
Keep going
How SUUPR helps
A set is hard enough when you finish within 0 to 3 reps of failure, with reps slowing and form starting to fight you.