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Energy metabolism during exercise.
iHow to read this: each row is one possible genotype, the two DNA letters you carry at this position, one inherited from each parent. "Normal" matches the more common version; "Carrier" (heterozygous) means you have one copy of each version, usually a partial effect; "Variant" (homozygous) means both copies carry the less common version, usually the strongest effect. The estimated frequency below is calculated from the variant's frequency in the general population (Hardy-Weinberg principle) — it is a population estimate, not a measurement of our own customers.
Muscle AMP deaminase: energy recycling during short, intense efforts.
| Genotype | Impact | Est. frequency | What it means |
|---|---|---|---|
| CCNormal | Normal | ~77% | Normal muscle AMP deaminase activity: typical capacity for short, intense efforts. |
| CTCarrier | Low impact | ~21% | Reduced AMP deaminase activity: may fatigue slightly earlier in repeated sprints or heavy sets. Longer recoveries between efforts help. |
| TTVariant | Moderate | ~1% | Low AMP deaminase activity (about 2% of Europeans): anaerobic capacity tends to be lower and fatigue arrives earlier in intense efforts. Endurance work is unaffected. Favour longer rest between hard sets. |
Estimated with the Hardy-Weinberg principle from the variant's population frequency, not measured directly.
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