Figure 3.

Mobility of all lumbar levels plotted versus bone mineral density (BMD) during flexion-extension for (A) range of motion (ROM), (B) lax zone (LZ), and (C) stiff zone (SZ) including males (M) and females (F). Note the negative correlations when considering ROM (LZ+SZ) (M, r = −0.311, P < .001; F: r = −0.269, P = .005), and LZ (M: r = −0.296, P < .001; F: r = −0.269, P = .009) but lack of correlations when considering SZ (M: r = −0.128, P = .140; F: r = −0.135, P = .163). Used with permission from Barrow Neurological Institute.