Research
Energy balance
Low muscle glycogen availability reduced power output by approximately 8% compared with normal glycogen availability.
Practitioners should be aware that low glycogen levels can significantly impair high-intensity cycling performance.
StrongSupportsmedium confidence
LOW reduced power output by approximately 8% compared with NORM (P < 0.01).
Why this rating
Based on study design from abstract.
Source
Caffeine Ingestion and Cycling Power Output in a Low or Normal Muscle Glycogen State
Stephen C. Lane et al. · Medicine & Science in Sports & Exercise · 2013
DOI 10.1249/mss.0b013e31828af183
other · n=12Cited 52×
Read the paper DOI resolved against Crossref · corpus check 2026-06-10
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