Table 2 Statistical details derived from mean crack length and substrate density plots of Fig. 6, at frequencies 1, 10 and 50 Hz. A and D are the constants from the curve fits. R², the squared correlation coefficient indicates the extent of the data and regression line fit. A P-value less than 0.05 confirms statistically significant data, as displayed at 10 Hz of loading frequency

From: Surface damage of bovine articular cartilage-off-bone: the effect of variations in underlying substrate and frequency