The Effect of Creatine Supplementation on Anaerobic Performance in Moderately Active Men
Bibliographic record
Abstract
The effect of creatine monohydrate (Cr) supplementation on anaerobic performance was investigated in 21 (treatment = 11; placebo = 10) moderately active males. Supplementation included 20 g·d−1 of Cr or a placebo (PLA) for 6 days. Anaerobic performance was assessed by time to fatigue in an anaerobic speed test (AST = 8 mph at a 20% grade). Four 15-second bouts of high-intensity treadmill running preceded the AST to ensure phosphocreatine store depletion. All tests were separated by 30 seconds of passive recovery. Analysis of variance with repeated measures on the time factor demonstrated no significant treatment effects (p > 0.05) in the dependent variables AST performance, body mass, or blood lactate. However, there was a significant interaction for plasma ammonia (p = 0.03), indicating a decreased plasma ammonia in the post-Cr group. Although it is expected that the phosphocreatine, glycolytic, and possibly the aerobic energy pathways contribute to the performance in this exercise protocol, these data suggest that Cr supplementation is ineffective in increasing performance in repeated, short-term, high-intensity anaerobic running.
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How this classification was reachedexpand
Full frame machine prediction
Teacher imitationNot calibrated prevalence, not ground truth. Human validation pending. The Gemma side is a direct model label for every work in the frame, read from the title-only record. The Codex side is a classifier learned from the 10,348 direct Codex labels and calibrated to design-weighted sample rates; fields without enough sample support carry no Codex call. Candidate is the union of the two sides; consensus is their intersection. These outputs are machine_predicted_unvalidated and are not human labels.
Distilled classifier scores by category (both heads)
| Category | Codex | Gemma |
|---|---|---|
| Metaresearch | 0.000 | 0.001 |
| Meta-epidemiology (narrow) | 0.001 | 0.000 |
| Meta-epidemiology (broad) | 0.001 | 0.000 |
| Bibliometrics | 0.000 | 0.000 |
| Science and technology studies | 0.000 | 0.000 |
| Scholarly communication | 0.000 | 0.000 |
| Open science | 0.000 | 0.000 |
| Research integrity | 0.001 | 0.000 |
| Insufficient payload (model declined to judge) | 0.001 | 0.000 |
Machine scores (provisional)
The two teacher heads of the student model, read on this work. A score orders the frame for review; it never asserts a category, and the validation status ships verbatim with every row.
Baseline scores from an immature model (maturity gate not passed, 7 training rounds). Scores rank; they never assert a category.
score_only:v0-immature-baseline · verbatim from the scoring run: score_only means the number may rank works, and no category label ships from itClassification
machine, unvalidatedMachine predicted; a candidate call from one source (direct Gemma or distilled Codex), not a consensus.
How this classification was reached, model by model and score by score, is at the end of the page under "How this classification was reached".