0845 Individuals with Persistent Low Back Pain Have Less Time in Deep Sleep Stage than Asymptomatic Controls

Abstract Introduction Sleep consists of stages light sleep, deep and rapid eye movement (REM), which have different characteristics. These are thought to be associated with physiological psychological processes. Pain is an unpleasant sensory emotional experience generated by neural activity that potentially impacts several networks in the brain. There limited information regarding potential association between objectively determined sleep characteristics persistent low back pain (pLBP). The purpose this study was examine whether differ individuals pLBP asymptomatic controls. Methods Individuals a current episode symptoms impacting function persisting greater than 3 months (pLBP group, n=20) (control n=16) participated study. They wore home test device (Zmachine® Insight+, General Corporation) for three nights. Results control groups had similar age (24.8 ± 5.8 25.4 4.3 years, respectively; mean SD), height, weight, waist hip circumferences. two also total time (6.0 1.2 6.6 1.0 hours, groups, respectively), efficiency (82.8 8.8% 84.9 5.7%), wake after onset (35.8 ±27.4 31.5 ±18.1 minutes). duration REM (1.5 0.5 1.5 0.6 hours) (3.1 0.7 3.4 0.9 were similar. However, group less (1.4 0.4 (1.7 0.3 (p = 0.029). Conclusion controls, although other appear results suggest stage requires further investigation. Support (if any) National Institutes Health R01HD095959 University South Carolina ASPIRE 80004373.