Enter the weight you lifted and the reps you completed. MuscleRx estimates your one-rep max and shows the key percentage ranges for smarter training.
90–100% is your heavy strength zone. Use it for low-rep strength work and occasional max-effort testing.
75–85% is a powerful range for a blend of size and strength. This is where a lot of productive training lives.
60–70% is ideal for technique, warm-ups, control work, and higher-volume training.