Key result
Heterozygosity for the ACTN3 null allele (577RX) in healthy adults generally results in intermediate or similar muscle performance compared to RR genotypes.
Why the study?
Does heterozygosity for the ACTN3 null allele (577RX) affect human muscle performance compared to homozygous genotypes?
Population
Humans (healthy adults, aging, disease/injury, elite sprint performance) with ACTN3 genotypes
Comparison
Heterozygosity for the ACTN3 null allele (577RX) vs Homozygosity for the functional allele or null…
Design
Review
Authors
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α-Actinin-3 deficiency may impair power performance and adaptation; leaves open its relevance for exercise guidance in clinical populations.
Does heterozygosity for the ACTN3 null allele (577RX) affect human muscle performance compared to homozygous genotypes?
The ACTN3 577RX genotype exerts an intermediate or recessive effect on muscle performance in healthy adults, but its effect remains unclear in other populations.
Garton et al. (2015) conducted a review in Human muscle performance. Heterozygosity for the ACTN3 null allele (577RX) vs. RR genotypes was evaluated on Human muscle performance. Heterozygosity for the ACTN3 null allele (577RX) in healthy adults generally results in intermediate or similar muscle performance compared to RR genotypes.
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