Session-RPE (sRPE) asks the athlete to rate the overall difficulty of a training session on a 1–10 scale (Borg CR-10), 15–30 minutes after the session ends. The number is then multiplied by session duration in minutes to yield a load score (e.g. RPE 7 × 80 min = 560 AU).
Despite being a single subjective number, sRPE correlates well with objective markers of internal load (heart rate, blood lactate) and is the most widely used field measure of training load in team sport — partly because it captures both physical and psychological strain in one ask.
Most ACWR implementations (including Performance House) compute the ratio from sRPE × duration. Validity depends on athletes reporting honestly and consistently — coaches who ask athletes to rate before they leave the facility get more honest numbers than those who ask hours later.
Where it's used
Daily training-load monitoring across team sports; the input to ACWR calculations.
References
- Foster C, Florhaug JA, Franklin J, et al. (2001). A new approach to monitoring exercise training. J Strength Cond Res.
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