Measure (Figure) | Animal | Unloaded | Loaded | Difference | Statistical test results |
---|---|---|---|---|---|
B38 frequency (not plotted) | 1 | 10.95 ± 1.80 (10) | 10.57 ± 0.70 (5) | 0.55 ± 0.57 (5) 3 ± 8% (5) | Protraction phase frequencies Hotelling’s T2 T2 = 11.324, F(2,3) = 4.247, p = 0.133 (n.s.) Post hoc tests not conducted |
2 | 10.44 ± 0.84 (6) | 11.40 ± 0.33 (15) | |||
3 | 4.50 ± 2.02 (6) | 3.35 ± 2.06 (5) | |||
4 | 11.88 ± 2.85 (6) | 13.57 ± 0.37 (9) | |||
5 | 7.41 ± 1.49 (11) | 9.04 ± 0.93 (5) | |||
I2 frequency (not plotted) | 1 | 15.17 ± 0.42 (10) | 15.71 ± 0.92 (5) | 1.21 ± 0.49 (5) 9 ± 4% (5) | |
2 | 12.33 ± 0.85 (6) | 12.43 ± 0.62 (15) | |||
3 | 12.80 ± 0.44 (6) | 15.66 ± 0.70 (5) | |||
4 | 15.37 ± 0.37 (6) | 16.15 ± 0.81 (9) | |||
5 | 12.92 ± 0.37 (11) | 14.68 ± 0.78 (5) | |||
B8a/b frequency (not plotted) | 1 | 12.00 ± 0.87 (10) | 12.20 ± 0.61 (5) | 1.59 ± 0.93 (5) 10 ± 5% (5) | Retraction phase frequencies Hotelling’s T2 T2 = 29.446, F(2,3) = 11.042, p = 0.041 (sig.) Post hoc test: B8a/b frequency Shapiro–Wilk, W = 0.95, p = 0.75 (n.s.) Paired t test, t(4) = 1.710, p = 0.081 (n.s.) Cohen's d = 0.28 Post hoc test: B3/B6/B9 frequency Shapiro–Wilk, W = 0.96, p = 0.84 (n.s.) Paired t test, t(4) = 3.935, p = 0.009 (sig.) Cohen's d = 0.47 |
2 | 18.22 ± 1.27 (6) | 22.91 ± 0.93 (15) | |||
3 | 21.61 ± 2.79 (6) | 23.40 ± 2.22 (5) | |||
4 | 22.20 ± 1.04 (6) | 21.46 ± 1.72 (9) | |||
5 | 10.32 ± 0.51 (11) | 12.32 ± 0.72 (5) | |||
B3/B6/B9 frequency (Figure 4F) | 1 | 38.99 ± 2.23 (10) | 42.27 ± 1.81 (5) | 5.82 ± 1.48 (5) 31 ± 11% (5) | |
2 | 14.79 ± 0.94 (6) | 16.59 ± 1.02 (15) | |||
3 | 27.85 ± 1.46 (6) | 37.90 ± 1.43 (5) | |||
4 | 30.40 ± 2.24 (6) | 37.87 ± 1.03 (9) | |||
5 | 9.12 ± 0.72 (11) | 15.66 ± 1.04 (5) | |||
B4/B5 frequency (not plotted) | 1 | 21.29 ± 1.59 (10) | 17.57 ± 1.14 (5) | 1.75 ± 1.41 (5) 17 ± 11% (4) | Shapiro–Wilk W = 0.74, p = 0.025 (sig.) Paired Wilcoxon signed-rank W = 11, p = 0.22 (n.s.) Cohen's d = 0.25 |
2 | 7.43 ± 1.62 (6) | 9.27 ± 0.97 (15) | |||
3 | 0 ± 0 (6) | 3.44 ± 2.66 (5) | |||
4 | 10.47 ± 1.24 (6) | 13.81 ± 1.00 (9) | |||
5 | 13.97 ± 0.49 (11) | 17.85 ± 0.97 (5) |
Data for B3/B6/B9 are plotted in Figure 4F (changes for other units were not significant). Units are in hertz, and values are reported as the mean ± SEM (sample size). sig., Significant test results; n.s., nonsignificant test results.