Training · Moderate evidence
Session Training Load from Perceived Exertion
Duration multiplied by the effort reported at the end of a session closely tracks training load measured by heart rate across any modality.
Validation study · 1 source · 2 min
What the studies show
- Session perceived exertion correlated with training load calculated from heart rate.
- The method works for activities where a watch measures poorly, such as team sports and resistance training.
How Letz applies it
Classes, sports, and swimming logged with “How was it?” (light, moderate, intense) factor into readiness using a duration × effort load, even without a watch.
Who it applies to
Athletes and participants in intermittent sports, group classes, and resistance training.
Limits
It is subjective; it is more useful for tracking an individual over time than for comparing different people.
Sources
More in Training
- Resistance Training, Strength, and HypertrophyVarious training prescriptions improve strength and hypertrophy; heavier loads favor strength, and multiple sets favor hypertrophy.
- Weekly Volume: Sets per Muscle GroupMore weekly sets per muscle produce greater hypertrophy, with diminishing returns; for strength, moderate volumes already capture most of the gains.
- Frequency: training each muscle at least twice per weekTraining a muscle group twice a week is superior to once for hypertrophy; for strength, higher frequency helps primarily because it distributes volume more effectively.
- Load and rep rangeLight and heavy loads produce similar hypertrophy when sets are taken close to failure; heavy loads are superior for maximizing strength gains.