Table 2.

Wiechert Viscoelastic Parameters, Extracted From Averaged Stress Relaxation Curves, for Uniform EOM Specimens Equivalent to Those After Z-Myotomy

Z-Myotomy Ratio, %	Equivalence Width, mm	E0	E1	E2	E3	τ1	τ2	τ3	R2
20	8.9	223	202	250	647	37.8	3.79	0.34	0.998
40	5.8	230	285	207	613	4.92	50.7	0.37	0.997
50	3.4	306	679	297	213	0.41	4.78	48.2	0.997
60 & 80	1.3 & 1.2	404	679	311	236	0.40	4.58	44.4	0.998

E₀, E₁, E₂, and E₃ are relaxation moduli of springs, and τ₁, τ₂, _and τ₃ are relaxation times of dashpots. Coefficients of determination R² are indicated for each fit.