The RPE scale (Rating of Perceived Exertion) is a subjective measure used to assess an individual's perception of exercise intensity. This scale, typically ranging from 6 to 20, helps individuals gauge their effort levels during workouts. By understanding their perceived exertion, individuals can adjust their training intensity to align with their fitness goals. Utilizing the RPE scale also promotes self-awareness, enabling athletes and exercisers to avoid overtraining or injury. It complements other measures of intensity, such as heart rate, providing a holistic approach to monitoring exercise effort.