Table 1. Statistical differences in compared profiles.
Compared profiles (referencevs. comparison) | rms analysis | Amplitude–frequency spectrum analyses | ||||||
[m/s2] | [t(38), p values] | [df = 1, p values] | ||||||
Total Noise | Stochastic Noise | Total Noise | Stochastic Noise | |||||
up | down | up | down | up | down | up | down | |
0.07 vs. 0.03 | <0.001 | <0.001 | 0.47 | 0.68 | <0.001 | <0.001 | <0.001 | 0.06 |
0.07 vs. 0.11 | <0.001 | <0.001 | 0.66 | 0.11 | <0.001 | <0.001 | 0.03 | <0.001 |
0.3 vs. 0.12 | <0.001 | <0.001 | 0.05 | 0.02 | <0.001 | <0.001 | <0.001 | <0.001 |
0.3 vs. 0.48 | <0.001 | <0.001 | 0.18 | 0.002 | <0.001 | <0.001 | 0.02 | <0.001 |
1.1 vs. 0.68 | <0.001 | <0.001 | 0.39 | 0.57 | <0.001 | <0.001 | <0.001 | <0.001 |
1.1 vs. 1.52 | <0.001 | <0.001 | 0.98 | 0.38 | <0.001 | <0.001 | 0.11 | 0.002 |
1.6 vs. 1.14 | <0.001 | 0.005 | 0.36 | 0.06 | <0.001 | <0.001 | <0.001 | <0.001 |
1.6 vs. 2.06 | <0.001 | <0.001 | 0.38 | 0.19 | <0.001 | <0.001 | <0.001 | <0.001 |
2 vs. 1.5 | <0.001 | <0.001 | 0.08 | <0.001 | <0.001 | <0.001 | <0.001 | <0.001 |
2 vs. 2.5 | 0.12 | <0.001 | 0.21 | 0.01 | <0.001 | <0.001 | <0.001 | <0.001 |
P-values resulting from the two analyses comparing the levels of total and stochastic noise around each reference for both upward (up) and downward (down) movements. Effects with a p-value <0.05 are considered as significant and appear in bold.