Research
Energy balance
Intervals at 100% PP and 80% PP do not produce statistically significant enhancements in performance.
Avoid relying on 100% and 80% PP intervals for performance gains in cycling time-trials.
StrongRefutesmedium confidence
Intervals performed at 100% PP and 80% PP did not produce statistically significant enhancements of performance.
Why this rating
Based on the study design involving controlled training effects and statistical validation.
Source
Effects of different interval-training programs on cycling time-trial performance
Nigel K. Stepto et al. · Medicine & Science in Sports & Exercise · 1999
DOI 10.1097/00005768-199905000-00018
other · n=20Cited 210×
Read the paper DOI resolved against Crossref · corpus check 2026-06-10
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