Table 1.

Young's Modulus of Each Treatment Group During the Loading and Unloading Conditions

	Loading Young's Modulus (kPa), mean ± standard error	p	Unloading Young's Modulus (kPa), mean ± standard error	p	p Value comparing loading and unloading for each group
Control	6.6 ± 1.0	0.28	10.3 ± 4.7	0.80	0.52
50 μg/mL collagen	14.4 ± 6.6	0.029	11.7 ± 2.2	0.25	0.66
100 μg/mL collagen	19.8 ± 3.8	0.46	18.1 ± 3.4	0.17	0.76

p value in bold denotes statistical significance (<0.05).

The data presented in Figure 5 are summarized in this table.