Research
Energy balance
Carbohydrate availability, in the form of circulating blood glucose, does not limit high-intensity exercise of this duration.
Circulating blood glucose levels are adequate for sustaining high-intensity cycling performance.
StrongRefutesmedium confidence
Carbohydrate availability, in the form of circulating blood glucose, does not limit high-intensity exercise of this duration.
Why this rating
Based on study design from abstract.
Source
Carbohyrate Ingestion Immediately Before Exercise Does Not Improve 20 km Time Trial Performance in Well Trained Cyclists
G. Palmer et al. · International Journal of Sports Medicine · 1998
DOI 10.1055/s-2007-971938
other · n=14Cited 46×
Read the paper DOI resolved against Crossref · corpus check 2026-06-10
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