In endurance training, for example, an RPE calculator can help athletes maintain a consistent pace without overexerting themselves. Long-distance runners, cyclists, and swimmers often use RPE to manage effort during extended sessions. By targeting specific RPE zones, athletes can build stamina, improve cardiovascular endurance, and reduce the risk of injury. For instance, an athlete may aim to maintain an RPE of 3-4 during low-intensity aerobic training to promote fat oxidation and endurance development. Conversely, high-intensity interval training (HIIT) sessions may push participants to exert themselves at an RPE of 8-9 during work intervals, <span style="font-family: Arial; font-size: 10pt;">calculator rpe</span> followed by recovery periods at an RPE of 2-3.