| Impaired muscle performance. Likely endurance athlete. |
| Geno
|
Mag
|
Summary
|
| (C;C)
|
2.2
|
Better performing muscles. Likely sprinter.
|
| (C;T)
|
2.1
|
Mix of muscle types. Likely sprinter.
|
| (T;T)
|
2.2
|
Impaired muscle performance. Likely endurance athlete.
|
Early reports such as [PMID 18043716] suggested this is under-represented in elite strength and sprint athletes, consistent with previous reports of impaired muscle performance. However this is more common in endurance athletes. This SNP makes fast-twitch muscle fibers completely unable to produce alpha-actinin-3. In 2016 a larger attempt at replication failed to find any signficant result
