000163854 001__ 163854
000163854 005__ 20251107115329.0
000163854 0247_ $$2doi$$a10.1007/s00421-025-05947-3
000163854 0248_ $$2sideral$$a146048
000163854 037__ $$aART-2025-146048
000163854 041__ $$aeng
000163854 100__ $$aBaltasar-Fernández, Iván
000163854 245__ $$aChanges and major determinants of relative muscle power loss in older adults: results from an 8-year longitudinal study
000163854 260__ $$c2025
000163854 5203_ $$aObjectives: This study aimed to evaluate longitudinal changes in relative sit-to-stand power (STSpower) in older adults and investigate contributing factors to its decline. Methods: 565 older adults (143 men and 422 women; ≥ 65 years) were tested at baseline and after 8 years of follow-up. Relative STSpower was estimated from the 30-s STS test using the Alcazar equation while body composition was assessed using bioelectrical impedance analysis. The basic components of relative STSpower (specific STSpower, leg muscle mass, body fat mass and fat-free mass) were calculated. Factors such as medication intake and daily walking and sitting time were recorded. Results: Relative STSpower declined significantly in both sexes, with greater reductions in men than women (11.8 vs 8.0%, p = 0.024). Losses were greater in men and women aged ≥75 years (− 2.0% and − 2.0%∙year−1, respectively) compared to those aged 65–69 years (− 1.1% and − 0.7% year−1, respectively). Approximately 95% of the average decline in relative STSpower was attributed to reductions in specific STSpower, while the remaining 5% was explained by the loss of leg muscle mass. Medication intake was associated with an increased risk of decreasing power in women (OR = 1.87, p = 0.049), while a trend was shown in men (OR = 2.58; p = 0.052). Sedentary time showed a tendency only in women (OR = 1.73; p = 0.085). Conclusion: Relative STSpower decreased progressively with aging, but differently in older men and women. This decline was primarily driven by reductions in specific STSpower, while the loss in leg muscle mass contributed to a lesser extent. Medication and sedentary time may influence power loss.
000163854 536__ $$9info:eu-repo/grantAgreement/ES/AEI/RED2022-134800-T$$9info:eu-repo/grantAgreement/ES/ISCIII/CB16-10-00477$$9info:eu-repo/grantAgreement/ES/MCD/EXP 104961$$9info:eu-repo/grantAgreement/ES/MCD/EXP 99828$$9info:eu-repo/grantAgreement/ES/MECD/EXERNET-DEP2005-00046$$9info:eu-repo/grantAgreement/ES/MECD/09-UPB-19$$9info:eu-repo/grantAgreement/ES/MECD/27-UPB-21$$9info:eu-repo/grantAgreement/ES/MECD/29-UPB-22$$9info:eu-repo/grantAgreement/ES/MECD/45-UPB-20$$9info:eu-repo/grantAgreement/ES/MECD/5-UPB-23
000163854 540__ $$9info:eu-repo/semantics/closedAccess$$aAll rights reserved$$uhttp://www.europeana.eu/rights/rr-f/
000163854 655_4 $$ainfo:eu-repo/semantics/article$$vinfo:eu-repo/semantics/publishedVersion
000163854 700__ $$aAlcázar, Julián
000163854 700__ $$0(orcid)0000-0001-6492-2512$$aGómez-Cabello, Alba
000163854 700__ $$0(orcid)0000-0003-0330-5558$$aMoradell, Ana$$uUniversidad de Zaragoza
000163854 700__ $$aPedrero Chamizo, Raquel
000163854 700__ $$aAlegre, Luis M.
000163854 700__ $$aVilla-Vicente, José Gerardo
000163854 700__ $$aGusi, Narcís
000163854 700__ $$aGonzález-Gross, Marcela
000163854 700__ $$0(orcid)0000-0002-7215-6931$$aCasajús, José Antonio$$uUniversidad de Zaragoza
000163854 700__ $$0(orcid)0000-0002-4303-4097$$aVicente-Rodríguez, Germán$$uUniversidad de Zaragoza
000163854 700__ $$aAra, Ignacio
000163854 7102_ $$12008$$2640$$aUniversidad de Zaragoza$$bDpto. Produc.Animal Cienc.Ali.$$cÁrea Nutrición Bromatología
000163854 7102_ $$11006$$2245$$aUniversidad de Zaragoza$$bDpto. Fisiatría y Enfermería$$cÁrea Educación Física y Depor.
000163854 773__ $$g(2025), [14 pp.]$$pEUR J APPL PHYSIOL$$tEUROPEAN JOURNAL OF APPLIED PHYSIOLOGY$$x1439-6319
000163854 8564_ $$s4285534$$uhttps://zaguan.unizar.es/record/163854/files/texto_completo.pdf$$yVersión publicada
000163854 8564_ $$s2575681$$uhttps://zaguan.unizar.es/record/163854/files/texto_completo.jpg?subformat=icon$$xicon$$yVersión publicada
000163854 909CO $$ooai:zaguan.unizar.es:163854$$particulos$$pdriver
000163854 951__ $$a2025-11-07-10:26:02
000163854 980__ $$aARTICLE