Table 1.

Fibrin Gel Contraction and Length Differences Compared To Constrained Gels

Day	FS length (mm)	Contraction (%)	Δ FS vs. 0% (mm)	Δ FS vs. 0% (%)	Dynamic Disp (mm)	Dynamic Disp (%)
0	20	0	0	0	0	0
7	13.87 ± 0.35	30.7 ± 1.74	0.13 ± 0.35	0.9 ± 2.52	1.4	10
14	9.68 ± 0.20	51.6 ± 1.00	4.32 ± 0.20	31.6 ± 2.06	1.4	10
21	8.75 ± 0.13	56.3 ± 0.66	5.25 ± 0.13	37.5 ± 1.50	1.4	10

The free-swelling (FS) construct length was measured over the 21 day experiment. Starting at day 7, loaded constructs were constrained at an approximate FS length of 14 mm. All data are mean ± standard error of the mean, n = 6 constructs.