000151075 001__ 151075
000151075 005__ 20251017144641.0
000151075 0247_ $$2doi$$a10.3390/app15041891
000151075 0248_ $$2sideral$$a142957
000151075 037__ $$aART-2025-142957
000151075 041__ $$aeng
000151075 100__ $$0(orcid)0000-0001-7652-2866$$aMoreno-Azze, Alejandro$$uUniversidad de Zaragoza
000151075 245__ $$aValidity and reliability of an iOS mobile application for measuring change of direction across health, performance, and school sports contexts
000151075 260__ $$c2025
000151075 5060_ $$aAccess copy available to the general public$$fUnrestricted
000151075 5203_ $$aThis study evaluated the validity and reliability of the Fitnessmeter mobile application for measuring change of direction (COD) performance compared to a gold-standard photocell system. Forty-six trained adolescent soccer players performed the 5 + 5 m COD test, with simultaneous data collection using the Fitnessmeter app and photocells. A strong correlation was observed between the two instruments (r = 0.971), with no significant differences in COD times (p > 0.05). Bland–Altman analysis indicated minimal systematic bias (0.02 ± 0.05 s) and acceptable limits of agreement. Reliability analysis demonstrated high consistency for both devices (Fitnessmeter ICC = 0.66–0.72; Photocells ICC = 0.57–0.76), with reproducibility confirmed by a low coefficient of variation values (<3%). The Fitnessmeter app also effectively measured inter-limb asymmetries, showing results comparable to photocells (p = 0.42). These findings validate Fitnessmeter as a reliable, portable, and cost-effective tool for COD assessment. Its accessibility makes it suitable for applications in sports, education, and rehabilitation, offering a practical alternative to expensive equipment. Further studies are recommended to confirm its reliability in other COD tests and contexts. Fitnessmeter’s innovative motion detection technology has the potential to democratize performance assessment, making it accessible to a broader audience beyond elite sports.
000151075 540__ $$9info:eu-repo/semantics/openAccess$$aby$$uhttps://creativecommons.org/licenses/by/4.0/deed.es
000151075 655_4 $$ainfo:eu-repo/semantics/article$$vinfo:eu-repo/semantics/publishedVersion
000151075 700__ $$0(orcid)0000-0003-1832-273X$$aLópez-Plaza, Daniel$$uUniversidad de Zaragoza
000151075 700__ $$aAlacid, Fernando
000151075 700__ $$0(orcid)0000-0001-9252-6971$$aFalcón-Miguel, David$$uUniversidad de Zaragoza
000151075 7102_ $$13001$$2187$$aUniversidad de Zaragoza$$bDpto. Expres.Music.Plást.Corp.$$cÁrea Didáctica Expres.Corporal
000151075 773__ $$g15, 4 (2025), 1891 [11 pp.]$$pAppl. sci.$$tApplied Sciences (Switzerland)$$x2076-3417
000151075 8564_ $$s1858113$$uhttps://zaguan.unizar.es/record/151075/files/texto_completo.pdf$$yVersión publicada
000151075 8564_ $$s2641920$$uhttps://zaguan.unizar.es/record/151075/files/texto_completo.jpg?subformat=icon$$xicon$$yVersión publicada
000151075 909CO $$ooai:zaguan.unizar.es:151075$$particulos$$pdriver
000151075 951__ $$a2025-10-17-14:31:53
000151075 980__ $$aARTICLE