Mechanical properties of BM-MSC and CB-MSC constructs, as well as native equine articular cartilage (Native Tissue). One-way ANOVAs were performed using p < 0.05 for statistical significance; letters above the bars show statistical significance between groups. In terms of compressive properties, both the instantaneous modulus (A) and relaxation modulus (B) were higher in CB-MSC constructs compared to BM-MSC constructs. Native tissue and Cord Blood did not significantly differ for either compressive property as well. BM-MSCs yielded constructs that had both higher tensile stiffness, represented by Young's modulus (C), and ultimate tensile strength (D) compared to CB-MSCs. ANOVAs, analyses of variance.