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

Figure 5.

Figure 5

Mobility of all lumbar levels plotted versus disc height during flexion-extension for (A) range of motion (ROM), (B) lax zone (LZ), and (C) stiff zone (SZ) including males and females. Note the slight negative correlations for male segments for ROM (r = −0.178, P = .087) and LZ (r = −0.266, P = .009) while positive for SZ (r = 0.206, P = .046). There were no significant correlations for female segments (ROM: r = 0.103, P = .407; LZ: r = 0.133, P = .285; and SZ: −0.165, P = .181). Used with permission from Barrow Neurological Institute.