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Table 2 Identified linear system dynamics, \(G_{\text {sys}}^{-1}(s)\), from half-amplitude and half-frequency (H.H.) and full-amplitude and full-frequency (F.F.) trials for joint angle (J.A.) and fascicle length (F.L.) estimations

From: Pressure based MRI-compatible muscle fascicle length and joint angle estimation

Type

a2

a1

a0

b1

b0

H.H.J.A. (single)

165.5 ± 29.8

1823 ± 1587

1836 ± 1807

9.7 ± 8.5

8.5 ± 8.3

F.F.J.A. (single)

140.2 ± 56.6

5115 ± 5049

682.2 ± 578.0

11.6 ± 10.2

8.6 ± 5.6

F.F.J.A. (differential)

143.9 ± 53.5

7189 ± 2359

145.5 ± 87.7

26.1 ± 8.7

1.3 ± 0.8

H.H.F.L. (single)

-47.7 ± 19.6

-202.4 ± 178.6

-183.5 ± 161.4

2.5 ± 2.0

1.8 ± 1.5

F.F.F.L. (single)

-12.0 ± 4.8

-736.1 ± 537.3

-791.7 ± 756.1

14.0 ± 7.9

21.7 ± 12.9

F.F.F.L. (differential)

-12.1 ± 5.5

-1083 ± 536

-8833 ± 5796

27.3 ± 5.1

141.6 ± 105.3

  1. Data are reported as mean ± 1 S.E.M.