Q

What is the significance of the ACTN3 gene in athletic performance?

From 5 years of verified research · Vassili Sandqvist
A

The ACTN3 gene is a key genetic marker associated with muscle fiber composition, specifically influencing the presence of alpha-actinin-3 in Type II fibers. Variations in this gene have been linked to performance differences, with elite sprinters and power athletes showing a lower frequency of the non-functional version compared to endurance athletes.

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