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3 matching protocols · tag “intervals”
HIIT overview: what it is, what it isn't, and why it works
ExerciseEvidence AHigh-intensity interval training has accumulated substantial evidence for cardiorespiratory and metabolic benefits. What 'HIIT' actually means, the dose, the recovery cost, and where it fits alongside aerobic base.
The Norwegian 4×4: the gold-standard interval protocol
ExerciseEvidence AThe Norwegian 4×4 protocol is the most-studied high-intensity interval session for raising VO2 max. The specific protocol, the trial evidence behind it, and how to implement it safely.
VO2 max: why it's a mortality biomarker and how training raises it
ExerciseEvidence AVO2 max is one of the strongest single predictors of all-cause mortality in the published epidemiology. What it measures, how training affects it, and what the dose-response actually looks like.