Genotype distribution of one mutation in ACTN3 gene in pre and postmenopausal exercising women - Peinado, AB.1; Cupeiro, R.1; Amigo, T.2; Guisado-Cuadrado, I.1; Romero-Parra, N.1,3; Benito, PJ.1; Alfaro-Magallanes, VM.1,4,5; González-Lamuño, D.2,6; on behalf of the IronFEMME Study Group (2025)