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. 2020 Apr 30;14(2):140–150. doi: 10.14444/7021

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©International Society for the Advancement of Spine Surgery 2020

PMC Copyright notice

Mobility of all lumbar levels plotted versus disc height during lateral bending for (A) range of motion (ROM), (B) lax zone (LZ), and (C) stiff zone (SZ) for males (M) and females (F). Note the slightly positive correlation when considering ROM (LZ+SZ) (M: r = 0.127, P = .222; F: r = 0.283, P = .020), lack of correlation when considering LZ (M: r = 0.072, P = .489; F: r = 0.117, P = .346), and positive correlation when considering SZ (M: r = 0.358, P < .001; F: r = 0.125, P = .313). Used with permission from Barrow Neurological Institute.