AB1392 ASSOCIATION OF SEDENTARY BEHAVIOR AND PHYSICAL ACTIVITY LEVELS WITH 8 DIMENSIONS OF HEALTH-RELATED QUALITY OF LIFE IN INDIVIDUALS WITH NON-SPECIFIC CHRONIC LOW BACK PAIN: THE BACKFIT AND HEALTHYBACK PROJECTS
Authors: G. Tsiarleston, M. D. López-Fernández, R. Pavón-Muñoz, V. Segura-Jiménez
Journal: Annals of the Rheumatic Diseases (2024)

<h3>Background:</h3> Prolonged time spent in sedentary behavior (SB) and less time spent in physical activity (PA) might be associated with lower quality of life in individuals suffering of chronic low back pain. <h3>Objectives:</h3> To determine the associations of SB and PA with eight different dimensions of health-related quality of life (HRQoL) in individuals with non-specific chronic low back pain (NSCLBP). <h3>Methods:</h3> A total of 147 individuals with NSCBLP (mean ± standard deviation= 51.3 ± 10.4 years) of which 95 were women participated in this cross-sectional study. SB and PA intensity levels (light, moderate and moderate-to-vigorous), expressed as percentage of total accelerometer wear time, were measured with a triaxial accelerometer (Actigraph GT3X+) worn in the non-dominant wrist for 1 week. Eight different dimensions of HRQoL [physical function (PF), physical role (PR), bodily pain (BP), general health (GH), vitality (VT), social functioning (SF), emotional role (ER) and mental health (MH)] were assessed with a validated self-reported questionnaire (36-item Short-Form Health Survey, SF-36). <h3>Results:</h3> Linear regression analysis showed that in women, greater time in SB was associated with lower PF (<i>b</i>=-0.41; 95% confidence interval (CI)=-0.74, -0.081; <i>p</i>=0.017) and PR (<i>b</i>=-0.57; CI=-0.95, -0.19; <i>p</i>=0.003), reduced SF (<i>b</i>=-0.6; CI=-1.01, -0.18; <i>p</i>=0.005), and ER (<i>b</i>=-0.74; CI=-1.18, -0.31; <i>p</i>=0.001). Greater time spent in light PA was associated with higher PF (<i>b</i>=0.63; CI=0.03,1.23; <i>p</i>=0.04), PR (<i>b</i>=0.80; CI=0.13,1.47; <i>p</i>=0.019), SF (<i>b</i>=1.01; CI=0.28,1.74; <i>p</i>=0.007) and ER (<i>b</i>=1.35; CI=0.59,2.10; <i>p</i>=0.001). Greater time spent on moderate-to-vigorous PA was associated with higher PR (<i>b</i>=0.76; CI=0.17, 1.35; <i>p</i>=0.012) and ER (<i>b</i>=0.72; CI=0.18, 1.43; <i>p</i>=0.045). In men, greater time spent in SB was associated with reduced ER (<i>b</i>=-0.63; CI=-1.27, -0.002; <i>p</i>=0.049). No additional associations were found (all <i>p</i>&gt;0.05). <h3>Conclusion:</h3> In individuals with NSCLBP, more time spent in SB and less time spent in light and moderate-to-vigorous PA was associated with lower HRQoL in multiple dimensions. These associations were mainly observed in women. Future studies with greater sample size in men are warranted. <h3>REFERENCES:</h3> <b>NIL.</b> <h3>Acknowledgements:</h3> Participants are deeply acknowledged for their collaboration. This study was supported by the Instituto de Salud Carlos III (through the research contract Miguel Servet CP20/00178 and the project PI22/01791) co-funded by the European Union. Furthermore, GT was supported by the Instituto de Salud Carlos III through the PFIS research contract (FI23/00034) co-funded by European Social Fund+. <h3>Disclosure of Interests:</h3> <b>None declared.</b>