TABLE 4.

Summary of significant changes with exercise.

	Wild type		Bgn-deficient
Properties	B6;129	C3H	B6;129	C3H
Body mass	↔	↔	↔	↔
Structural-level mechanical	↑Post-yield deformation ↑Failure deformation	↔	↔	↔
Tissue-level mechanical	↔	↔	↑ Yield stress	↔
Tissue composition	↑ Carbonate/phosphate ratio	↑Carbonate/phosphate ratio ↑mineral/matrix ratio ↑collagen cross-linking ratio	↑ Carbonate/phosphate ratio ↓ crystallinity	↑ Collagen crosslinking ratio
Cross-sectional geometry	↔	↔	↑ AP/ML ratio	↔

This table summarizes the significant effects of exercise in each group. An ↔ indicates that no properties were changed with exercise.