Table 3 Time to Peak Standard Deviation inter- and intra-observer reproducibility

− 0.5 ± 16.0

0.62 (0.16, 0.85)

11.69 ± 10.44

62.71 (11.34–159.25)

2.0 ± 17.9

0.83 (0.56, 0.94)

11.49 ± 13.58

35.72 (23.53–137.50)

8.4 ± 28.6

0.67 (0.28, 0.87)

21.37 ± 20.13

24.47 (14.89–44.58)

5.8 ± 20.0

0.86 (0.64, 0.95)

11.36 ± 17.29

17.72 (2.63–42.43)

1.7 ± 33.9

0.35 (− 0.21, 0.73)

21.21 ± 25.88

17.09 (7.04–56.85)

5.7 ± 27.8

0.74 (0.39, 0.90)

13.59 ± 24.70

10.28 (2.22–77.84)

3.0 ± 24.8

0.53 (0.04, 0.82)

20.26 ± 13.52

79.66 (24.51–98.46)

−9.3 ± 19.7

0.81 (0.52, 0.93)

10.90 ± 18.76

37.79 (10.20–58.59)

−4.3 ± 37.1

0.83 (0.56, 0.94)

24.02 ± 27.95

36.96 (19.78–60.82)

6.4 ± 11.9

0.96 (0.87, 0.99)

7.33 ± 11.30

8.37 (1.58–30.17)

8.5 ± 32.7

0.81 (0.53, 0.93)

18.78 ± 27.72

22.71 (7.60–41.19)

9.4 ± 16.8

0.90 (0.69, 0.97)

13.87 ± 13.12

18.85 (4.86–49.68)

1.2 ± 10.0

0.79 (0.47, 0.92)

5.75 ± 8.09

20.69 (6.26–83.64)

0.2 ± 10.0

0.73 (0.35, 0.90)

4.60 ± 8.41

30.77 (8.13–93.33)

− 1.3 ± 39.4

0.40 (− 0.15, 0.75)

20.78 ± 33.01

10.30 (5.03–32.49)

− 0.8 ± 13.6

0.80 (0.51, 0.93)

7.24 ± 11.33

16.34 (4.88–37.40)

−1.8 ± 35.8

0.26 (− 0.31, 0.68)

18.40 ± 30.42

13.81 (5.50–48.81)

−14.8 ± 54.6

0.18 (− 0.34, 0.62)

18.71 ± 53.28

19.20 (7.00–38.07)

4.5 ± 13.6

0.55 (0.10, 0.81)

7.89 ± 11.87

23.34 (11.04–59.10)

− 0.7 ± 15.4

0.50 (− 0.02, 0.80)

6.75 ± 13.70

25.35 (7.13–50.00)

−13.5 ± 37.7

0.27 (− 0.22, 0.67)

25.59 ± 30.19

38.59 (14.49–106.81)

4.6 ± 19.2

0.62 (0.19, 0.85)

11.01 ± 16.17

14.11 (2.22–33.61)

5.2 ± 19.4

0.57 (0.11, 0.83)

9.87 ± 17.32

16.28 (4.98–21.38)

1.6 ± 7.3

0.93 (0.81, 0.98)

6.24 ± 3.71

23.19 (9.00–30.35)