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Table 3 Mean total crack length values with standard deviation for cartilage-off-bone samples, following testing, at all frequencies and substrates investigated, as a combined study

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

Frequency (Hz)

Mean total crack length (mm) ± SD

Substrate 1

Substrate 2

Substrate 3

Substrate 4

1

3.01 ± 3.41

2.57 ± 2.42

2.69 ± 2.66

1.19 ± 1.63

10

4.65 ± 5.66

5.65 ± 3.80

8.76 ± 7.70

10.95 ± 9.12

50

5.65 ± 6.54

3.80 ± 3.95

4.25 ± 3.68

3.82 ± 3.36