Testing a One Rep Max primarily develops maximal strength rather than muscle size. Muscle growth occurs more effectively through moderate loads performed at 65–85% of 1RM with higher training volume and controlled repetitions.
Strength vs Muscle Growth
- 90–100% 1RM → Strength development
- 65–85% 1RM → Muscle hypertrophy
- Moderate reps stimulate muscle growth best
Best Way to Use 1RM for Muscle Gain
Use your calculated 1RM to determine training weights instead of lifting maximal loads frequently.
👉 Calculate training percentages here:
https://onermcalculator.com/