How do you calculate session RPE-based training load and why is it useful?

• A. Training Load = distance × time
• B. Training Load equals heart rate
• C. Training Load = session RPE × session duration
• D. Training Load equals number of workouts per week

Answer: (C)

The idea being tested is that the internal stress of a training session is captured by how hard the athlete felt the session was, scaled by how long it lasted. The training load is calculated by multiplying the session’s Rating of Perceived Exertion (RPE) by the session duration in minutes. In practice, you rate the whole session on a 0–10 (or 1–10) scale after finishing, then multiply that number by the total minutes of training.

This approach is useful because it converts subjective effort into a simple, comparable number that reflects internal load. It accounts for both intensity and duration, so a short, very hard session and a long, easy session can be compared on equal footing. You can add these per-session loads across days to monitor weekly workload, detect fatigue trends, plan progression, and schedule rest or deloads. It’s a practical, cost-effective way to track how demanding training is on the athlete, independent of external metrics like distance or heart rate alone.

Why the other ideas don’t fit: distance × time describes external work done, not the athlete’s perceived effort. Heart rate by itself captures physiological response but doesn’t combine effort with duration in a single per-session load. The number of workouts per week is a dosing metric of frequency, not the internal load of a single session.