Table 2 Variance accounted for (VAF) and Full-Width at half maximum (FWHM) values for each condition (Flat = FC; Unpredictable Roll Variations = URV) and speed divided in the two 3-minute time-windows (I half vs. II half). Parameters’ values are reported as mean ± standard error over the sample population. Asterisks (*), double asterisks (**), and dagger (†) represent statistically significant differences between flat and perturbed conditions.
From: Muscle synergies and metabolic adaptations during perturbed walking in older adults
Muscle synergy-derived parameters | Walking speed | ||||
|---|---|---|---|---|---|
3 km/h | 4 km/h | 5 km/h | |||
VAF [%] | I Half | FC | 93.9 ± 1.7 | 93.4 ± 2.2 | 93.0 ± 3.1 |
URV | 93.5 ± 1.8 | 92.2 ± 2.2 | 93.0 ± 1.7 | ||
II Half | FC | 92.9 ± 1.9 | 92.6 ± 1.8 | 93.1 ± 1.9 | |
URV | 92.9 ± 1.9 | 92.3 ± 1.9 | 92.9 ± 1.2 | ||
FWHM [%GC] | I Half | FC | 24.3 ± 4.1* | 22.4 ± 6.3** | 23.5 ± 5.4 |
URV | 28.1 ± 7.2* | 27.2 ± 5.6** | 24.6 ± 5.2 | ||
II Half | FC | 23.2 ± 4.9† | 24.3 ± 8.9 | 22.6 ± 5.6 | |
URV | 26.1 ± 4.2† | 25.9 ± 6.3 | 23.3 ± 7.5 | ||
