The RPE (Rating of Perceived Exertion) scale is a tool used to measure an individual's perceived intensity of physical activity, typically ranging from 6 to 20. This subjective measure helps individuals assess their effort level during exercise and can guide them in adjusting their training intensity according to their fitness goals and overall condition. The scale is particularly valuable in exercise training principles, as it correlates well with physiological measures such as heart rate and oxygen consumption.
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