Fig. 3

The increased motion of lumbar induced LFH on HE staining and on MT staining. a Axial sections of the rat lumbar spine. The cross-sectional area of LF in the sham group and experimental group on HE staining were shown respectively in (b) and (c). The (d), (e), and (f) Bar graphs showing the thickness, width, and cross-sectional area in the two groups. The cross-sectional area of LF in the sham group and experimental group on MT staining were shown respectively in (g) and (i). The fibrotic area were in the red circle. The (h) and (j) were high magnifications of (g) and (i). The (k) and (l) Bar graph showed the area of collagen fibers and elastic fibers in the two groups. The (m) Bar graph showed the ratio of elastic fibers to collagen fibers in the two groups. The (n) bar showed the thickness of dorsal layer of LF. Scale bar, 500 and 100 μm for low (a) and high (b, c, g, i) magnification images, respectively