Muscle atrophy after ACL reconstruction involves molecular mechanisms beyond unloading. - Keeble AR; Gonzalez-Velez S; Thomas NT; Owen AM; Stone AV; Johnson DL; Candia J; Ferrucci L; Narici M; Dupont-Versteegden EE; Noehren B; Franchi MV; et al. (Journal of applied physiology (Bethesda, Md. : 1985), 2026)