RT Journal Article
T1 Clinical utility of a quick and easy-to-use international tool for assessing and identifying impaired physical fitness in people with severe mental illness – The PsychiActive project
A1 López-Moral, Álvaro
A1 Munguía Izquierdo, Diego
A1 Bueno-Antequera, Javier
K1 Fitness assessment
K1 Early detection
K1 Physical health screening
K1 Functional impairment
K1 Psychiatric rehabilitation
K1 Validity
K1 Reliability
AB BackgroundSevere mental illness (SMI) is a leading cause of mortality, disability, and frailty, largely driven by physical multimorbidity. Physical fitness is a strong predictor of health outcomes, yet routine assessment is rarely implemented in SMI due to limited resources. Self-reported tools may offer a feasible alternative, although their validity and clinical utility remain unclear. This study evaluated the validity, reliability, and clinical utility of the International Fitness Scale (IFIS) in SMI.MethodsIn a multicenter cross-sectional study, 234 adults with SMI (18–65 years, 62 females) completed the IFIS and a battery of objective physical fitness tests. Convergent validity was assessed using ANOVA and ANCOVA. Test–retest reliability over two weeks was assessed using weighted kappa and percentage agreement. Clinical utility was evaluated using area under the curve, sensitivity, specificity, and positive predictive value.ResultsThe IFIS effectively discriminated objective physical fitness across all domains and response categories in adults with severe mental illness (p < 0.005), with lower self-reported fitness consistently associated with poorer objective performance. Test–retest reliability was fair for the five-response scale (κ = 0.22–0.32) and improved after category reduction (κ = 0.26–0.50). The highest positive predictive value was observed for muscular strength (75%) and cardiorespiratory fitness (46%). The IFIS showed moderate discriminatory accuracy for cardiorespiratory fitness and flexibility (AUC = 0.64 for both domains). Mean completion time was 1.8 ± 1.2 min.
PB Elsevier
YR 2026
FD 2026
LK https://hdl.handle.net/10433/26537
UL https://hdl.handle.net/10433/26537
LA en
NO López-Moral, Á., Munguía-Izquierdo, D., & Bueno-Antequera, J. (2026). Clinical utility of a quick and easy-to-use international tool for assessing and identifying impaired physical fitness in people with severe mental illness – The PsychiActive project. Journal of Affective Disorders, 408, 121898. https://doi.org/10.1016/j.jad.2026.121898
NO This work was funded by Proyectos I + D + i 2020 (Ref. PID2020-118262RB-I00) from the Spanish Ministry of Science and Innovation. It was also supported by the CTS-948 Research Group, Universidad Pablo de Olavide, Junta de Andalucía, and FEDER Programme 2014–2020 (Ref. UPO-1262802). ALM was supported by Universidad Pablo de Olavide (Ref. PPI1803). JBA was supported by the Operational Programme FEDER Andalucía 2014–2020 (Ref. PAC2042) and by the Junta de Andalucía through the Consejería de Transformación Económica, Industria, Conocimiento y Universidades (Ref. POSTDOC_21_00059). Funding for open access publishing: Universidad Pablo de Olavide/CBUA.
NO Universidad Pablo de Olavide. Departamento de Deporte e Informática
DS RIO
RD May 23, 2026