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22); anterior shift in L1-2T -weighted centroid (0.39); and L3-4 (mean 2.1°) and L4-5 (1.8°) extension angle. More degeneration was graphically related with larger changes from Compression to Traction (more superior and, anterior position of the T -weighted centroid, increased height, reduced extension of segmental angle) and from Unloaded to Compression larger changes in inferior displacement of the T weighted centroid, decrease in height) but less anterior displacement of the centroid and less change in segmental angles. The largest lo