What the study found
The study compared five interval formats using 40-km cycling time-trial performance. Improvements depended on the format; it does not support describing all measured outcomes as unchanged.
Participants and protocol
Twenty male endurance cyclists completed six interval sessions over three weeks. The formats varied repetition duration, intensity and recovery; the performance test was a 40-km time trial.
What this cannot establish
A small sample split across five formats gives uncertain comparisons. The cycling protocols should not be turned into a running prescription or a claim about VO₂max without checking the reported measurements.
Publication details
- Record
- PubMed 10331896
- Publication types
- Clinical Trial · Randomized Controlled Trial
- Indexed subjects
- Oxygen Consumption · Physical Endurance · Time Factors · Bicycling
- Source record checked
- 2026-10-16
Publication type and subject indexing describe the record; they are not a quality grade or proof of a benefit. An abstract does not replace a review of the full methods and results.
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