131220 20260217205452.0 doi 10.3390/nu16020298 sideral 136724 ART-2024-136724 eng Moradell, Ana Universidad de Zaragoza (orcid)0000-0003-0330-5558 Longitudinal changes in the body composition of non-institutionalized spanish older adults after 8 years of follow-up: the effects of sex, age, and organized physical activity 2024 Access copy available to the general public Unrestricted Aging leads to physiological changes affecting body composition, mediated by lifestyle. However, the effectiveness of organized physical activities (OPAs) in attenuating or delaying these age-related transformations remains an area of limited understanding. The primary objectives of this study were threefold: (I) to comprehensively assess the evolution of body composition in a cohort of Spanish older adults over an 8-year period; (II) to compare this evolution in the different age groups; and (III) to investigate the influence of active engagement in OPAs on these age-related changes. From a sample of 3136 Spanish older adults recruited in 2008, 651 agreed to participate in the 8-year follow-up. Anthropometric and bioelectrical impedance data were included for 507 females (70.3 ± 4.4 years) and 144 males (77.8 ± 4.5 years). Age groups were categorized as follows: youngest (65–69 years), mid (70–74 years), and oldest (≥75 years). The engagement in OPA was recorded before and after the follow-up. A repeated measures ANOVA was performed to evaluate the 8-year changes. Males increased in hip (98.1 ± 9.3 vs. 101.5 ± 10.2 cm) and waist circumferences (101.2 ± 6.6 vs. 103.2 ± 6.1 cm), specifically in the youngest group (p < 0.05). Females decreased in weight (67.6 ± 10.0 vs. 66.6 ± 10.5 kg) and fat mass percentage (39.3 ± 5 vs. 38.8 ± 5.4%) and increased in hip circumference (104.4 ± 9.0 vs. 106.5 ± 9.7 cm); these effects were the most remarkable in the oldest group (all p < 0.05). OPA engagement seemed to slow down fat-free mass loses in males, but not in females (grouped by time, p < 0.05). Body composition changes caused by aging seem to happen earlier in males than in females. Moreover, participating in OPAs does not prevent fat-free mass due to aging. info:eu-repo/grantAgreement/ES/MECD/CB16-10-00477 info:eu-repo/grantAgreement/ES/MECD/EXERNET-DEP2005-00046 info:eu-repo/grantAgreement/ES/MICINN-FEDER/IMSERSO-147-11 info:eu-repo/grantAgreement/ES/MINECO/DEP2016-78309-R info:eu-repo/grantAgreement/ES/UZ/UZCUD2016-BIO-01 info:eu-repo/grantAgreement/ES/UZ/UZCUD2017-BIO-01 info:eu-repo/grantAgreement/ES/UZ/2008-BIO-01 info:eu-repo/semantics/openAccess by https://creativecommons.org/licenses/by/4.0/deed.es 5.0 2024 NUTRITION & DIETETICS 17 / 113 = 0.15 2024 Q1 T1 1.473 2024 Nutrition and Dietetics 2024 Q1 Food Science 2024 Q1 9.1 2024 info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion Gomez-Cabello, Alba (orcid)0000-0001-6492-2512 Mañas, Asier Gesteiro, Eva Pérez-Gómez, Jorge (orcid)0000-0002-4054-9132 González-Gross, Marcela (orcid)0000-0001-7757-3235 Casajús, Jose Antonio Universidad de Zaragoza (orcid)0000-0002-7215-6931 Ara, Ignacio (orcid)0000-0002-2854-6684 Vicente-Rodríguez, Germán Universidad de Zaragoza (orcid)0000-0002-4303-4097 2008 640 Universidad de Zaragoza Dpto. Produc.Animal Cienc.Ali. Área Nutrición Bromatología 1006 245 Universidad de Zaragoza Dpto. Fisiatría y Enfermería Área Educación Física y Depor. 16, 2 (2024), 298 [12 pp.] Nutrients Nutrients 2072-6643 543666 http://zaguan.unizar.es/record/131220/files/texto_completo.pdf Versión publicada 2808094 http://zaguan.unizar.es/record/131220/files/texto_completo.jpg?subformat=icon icon Versión publicada oai:zaguan.unizar.es:131220 articulos driver 2026-02-17-20:19:15 ARTICLE