Rating of perceived exertion is a scale used to describe how difficult an effort feels; in lifting it is often linked to repetitions in reserve.
Why RPE matters
RPE allows the load to respond to daily readiness while keeping the intended effort consistent.
A practical example
An RPE 8 lifting set generally ends with about two good repetitions remaining.
Common mistake
Treating the scale as perfectly objective before learning how different effort levels feel.
Keep the context in mind.
Training and nutrition terms describe general principles. The right exercise, intensity or food target still depends on your experience, health, goals and schedule.
Personalised coaching
Apply the principle to your own training.
A definition is useful, but your programme still needs to match your experience, schedule, recovery and goals.
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