Spine
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Cross-sectional observational study on the relationship between the degrees of disc degeneration and sagittal alignment in asymptomatic healthy individuals. ⋯ 3.
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Retrospective cohort analysis. ⋯ 4.
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Retrospective review of prospective multicenter database. ⋯ 3.
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Randomized Controlled Trial
The Effect of Sitting on Stability Balls on Non-Specific Lower Back Pain, Disability, and Core Endurance: A Randomized Controlled Crossover Study.
Experimental randomized crossover. ⋯ Ball-sitting had no significant effects on LBP or associated disability, but did improve core endurance in the sagittal plane. Although ball-sitting may be useful as an adjunct treatment for LBP when core muscles are involved, clinicians should rely on other, evidence-based treatments for LBP.