RT Journal Article T1 Patterns of Sedentary Time and Quality of Life in Women With Fibromyalgia: Cross-Sectional Study From the al-Ándalus Project. A1 Gavilan-Carrera, Blanca A1 Segura-Jimenez, Víctor A1 Acosta-Manzano, Pedro A1 Borges-Cosic, Milkana A1 Alvarez-Gallardo, Inmaculada C A1 Delgado-Fernandez, Manuel K1 GT3X+ K1 Accelerometry K1 Sedentary behavior K1 Symptomatology AB Sedentary time (ST) has been associated with detrimental health outcomes in fibromyalgia. Previous evidence in the general population has shown that not only is the total amount of ST harmful but the pattern of accumulation of sedentary behaviors is also relevant to health, with prolonged unbroken periods (ie, bouts) being particularly harmful. To examine the association of the patterns of ST with health-related quality of life (HRQoL) in women with fibromyalgia and to test whether these associations are independent of moderate-to-vigorous physical activity (MVPA). A total of 407 women (mean 51.4 years of age [SD 7.6]) with fibromyalgia participated. ST and MVPA were measured with triaxial accelerometry. The percentage of ST accumulated in bouts and the frequency of sedentary bouts of different lengths (≥10 min, ≥20 min, ≥30 min, and ≥60 min) were obtained. Four groups combining total ST and sedentary bout duration (≥30 min) were created. We assessed HRQoL using the 36-item Short-Form Health Survey (SF-36). A greater percentage of ST spent in all bout lengths was associated with worsened physical function, bodily pain, vitality, social function, and physical component summary (PCS) (all P Greater ST in prolonged periods of any length and a higher frequency of ST bouts, especially in longer bout durations, are associated with worsened HRQoL in women with fibromyalgia. These associations were generally independent of MVPA. PB JMIR Publications YR 2019 FD 2019-09-24 LK http://hdl.handle.net/10668/15264 UL http://hdl.handle.net/10668/15264 LA en NO Gavilán-Carrera B, Segura-Jiménez V, Acosta-Manzano P, Borges-Cosic M, Álvarez-Gallardo IC, Delgado-Fernández M. Patterns of Sedentary Time and Quality of Life in Women With Fibromyalgia: Cross-Sectional Study From the al-Ándalus Project. JMIR Mhealth Uhealth. 2020 Mar 19;8(3):e14538 NO We thank the collaborators of the al-Ándalus project and all the members of the Physical Activity for Health Promotion (PAHELP; CTS-1018) research group. We also gratefully acknowledge all the study participants for their collaboration. This study was supported by the Spanish Ministries of Economy and Competitiveness (I+D+i DEP2010-15639; I+D+i DEP2013-40908-R, BES-2014-067612) and the Spanish Ministry of Education (FPU 15/00002). This study was also partially funded by the Universityof Granada, Plan Propio de Investigación 2016, Excellence actions: Units of Excellence; Unit of Excellence on Exercise and Health (UCEES), by the Junta de Andalucía, Consejería de Conocimiento, Investigación y Universidades and European Regional Development Fund (ERDF), ref SOMM17/6107/UGR, and by the University of Cádiz (Research and Transfer Activity Promotion Program). This study is part of a PhD thesis of the Biomedicine Program of the University of Granada DS RISalud RD Apr 7, 2025