Association of physical fitness components and health-related quality of life in women with systemic lupus erythematosus with mild disease activity
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AuthorGavilán Carrera, Blanca; García da Silva, Jaqueline; Vargas-Hitos, José Antonio; Sabio, José Mario; Morillas de Laguno, Pablo; Ríos Fernández, Raquel; Soriano‑Maldonado, Alberto
Gavila´n-Carrera B, Garcia da Silva J, Vargas-Hitos JA, Sabio JM, Morillas-de-Laguno P, Rios-Ferna´ndez R, et al. (2019) Association of physical fitness components and health-related quality of life in women with systemic lupus erythematosus with mild disease activity. PLoS ONE 14(2): e0212436
SponsorshipThis work was supported by the Consejería de Salud, Junta de Andalucía (grant number: PI-0525-2016) and the Ilustre Colegio Oficial de Médicos de Granada (Premios de Investigación 2017). BG-C was supported by the Spanish Ministry of Education (FPU15/00002).
To study the association of different components of physical fitness [flexibility, muscle strength and cardiorespiratory fitness (CRF)] and a clustered fitness score with healthrelated quality of life (HRQoL) in women with systemic lupus erythematosus (SLE) and to analyze whether participants with high fitness level have better HRQoL. This cross-sectional study included 70 women with SLE (aged 42.5; SD 13.9 years). The back-scratch test assessed flexibility, the 30-sec chair stand and handgrip strength tests assessed muscle strength, and the 6-min walk test (n = 49) assessed CRF. HRQoL was assessed through the 36-item Short-Form Health Survey (SF-36). Our study suggests that muscle strength and CRF are positively associated with HRQoL, while flexibility showed contradictory results. These findings highlight the importance of maintaining adequate fitness levels in women with SLE.