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Menarche, somatic maturity, and physical fitness in Portuguese girls: An intergenerational analysis based on the Mirwald equation

2026-03-04Artigo científico Acesso aberto
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datacite.subject.fosHumanidades
datacite.subject.sdg03:Saúde de Qualidade
dc.contributor.authorSilva, Ana Filipa
dc.contributor.authorHonório, Samuel
dc.contributor.authorEspada, Mário
dc.contributor.authorGonzález-Frenández, Francisco
dc.date.accessioned2026-03-12T16:05:57Z
dc.date.available2026-03-12T16:05:57Z
dc.date.issued2026-03-04
dc.description.abstractPurpose: This study aimed to assess age at menarche in Portuguese girls and compare it with their mothers, examine its association with somatic maturity estimated by the Mirwald equation, and characterise physical fitness in pre- and post-pubertal girls. Material and methods: 71 Portuguese girls (10–13 years, post-menarche) completed a questionnaire on menarcheal age (self and mothers), anthropometric assessments (height, sitting height, body mass, waist circumference), and physical fitness tests (handgrip, isometric mid-thigh pull, 3-min Kasch Pulse Recovery Test). Somatic maturity was estimated with the Mirwald equation. Analyses included paired and independent t-tests, effect sizes, correlations, and agreement (Bland–Altman, Lin’s CCC). Results: Pre-PHV girls had negative maturity offset values (–0.58 ± 0.62 years), while post-PHV girls were beyond PHV (1.28 ± 0.91 years). Mean age at menarche was 10.87 ± 0.93 years, significantly earlier than their mothers (12.00 ± 1.44 years; mean difference = –1.09, p < 0.001). Post-PHV girls showed higher absolute strength (handgrip right: 18.86 ± 3.68 vs. 12.74 ± 3.10 kg, d = 1.72; IMTP: 63.46 ± 12.54 vs. 45.58 ± 11.93 kg, d = 1.44), while relative strength differences were smaller (handgrip: 0.35 ± 0.08 vs. 0.30 ± 0.09 kg/kg, d = 0.67). Endurance did not differ. The Mirwald equation underestimated years since menarche by 0.94 ± 1.10, with weak agreement (Lin’s CCC = 0.37). Conclusions: Biological maturation strongly influenced absolute strength, largely explained by body size. Relative strength and maturity offset-based estimates of years since menarche showed weaker validity, highlighting the need for refined prediction models.eng
dc.identifier.citationSILVA, A.F. [et al.] (2026) - Menarche, somatic maturity, and physical fitness in Por tuguese girls: an intergenerational analysis based on the Mirwald equation. Human Movement. 27(1):87–97. DOI: 10.5114/hm/214837.
dc.identifier.doi10.5114/hm/214837
dc.identifier.issn1899-1955
dc.identifier.urihttp://hdl.handle.net/10400.11/10655
dc.language.isoeng
dc.peerreviewedyes
dc.publisherHuman Movement
dc.relation.hasversionhttps://hummov.awf.wroc.pl/Menarche-somatic-maturity-and-physical-fitness-in-Portuguese-girls-an-intergenerational,214837,0,2.html
dc.rights.urihttp://creativecommons.org/licenses/by-nc-nd/4.0/
dc.titleMenarche, somatic maturity, and physical fitness in Portuguese girls: An intergenerational analysis based on the Mirwald equationeng
dc.typejournal article
dspace.entity.typePublication
oaire.citation.endPage97
oaire.citation.issue1
oaire.citation.startPage87
oaire.citation.titleHuman Movement
oaire.citation.volume27
oaire.versionhttp://purl.org/coar/version/c_970fb48d4fbd8a85
person.familyNameHONÓRIO
person.givenNameSAMUEL
person.identifier1450670
person.identifier.ciencia-idA011-9441-2654
person.identifier.orcid0000-0003-1863-344X
person.identifier.ridN-9104-2016
person.identifier.scopus-author-id55382546200
relation.isAuthorOfPublication7ea045cb-d421-4d6f-9078-e058b2fd4549
relation.isAuthorOfPublication.latestForDiscovery7ea045cb-d421-4d6f-9078-e058b2fd4549

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