Table 1.
Comparison of participant details at baseline between the control and nGVS groups
| All (n = 32) | Control (n = 16) | nGVS (n = 16) | P value | ||
|---|---|---|---|---|---|
| Sex | Male | 7 | 3 | 4 | – |
| Female | 25 | 13 | 12 | ||
| Characteristics | Age (years) | 75.8 ± 0.8 | 75.9 ± 1.1 | 75.7 ± 1.3 | 0.92 |
| Weight (kg) | 55.0 ± 1.5 | 53.4 ± 2.3 | 56.7 ± 1.8 | 0.28 | |
| Height (cm) | 154.5 ± 1.3 | 153.2 ± 2.3 | 155.8 ± 1.8 | 0.34 | |
| Clinical measures of postural stability | TUG (s) | 6.7 ± 0.2 | 6.5 ± 0.2 | 6.9 ± 0.3 | 0.40 |
| OLS (s) | 60.2 ± 7.6 | 64.9 ± 10.8 | 55.4 ± 11.0 | 0.54 | |
| COP sway measures at baseline | RMS area (mm2) | 224.5 ± 22.9 | 187.9 ± 17.2 | 261.1 ± 41.2 | 0.11 |
| Sway path length (mm) | 785.6 ± 43.3 | 789.4 ± 65.2 | 781.7 ± 59.2 | 0.93 | |
| ML mean velocity (mm/s) | 16.2 ± 0.9 | 16.0 ± 1.3 | 16.5 ± 1.3 | 0.79 | |
| AP mean velocity (mm/s) | 16.4 ± 1.0 | 16.7 ± 1.5 | 16.1 ± 1.5 | 0.75 |
Characteristics (age, weight and height), clinical measures of postural stability (TUG and OLS) and COP sway measures were not significantly different between the control and nGVS groups at baseline. AP anteroposterior, COP centre of pressure, ML, mediolatera,; nGVS noisy galvanic vestibular stimulation, OLS, one leg stance test, RMS, root mean square, TUG, timed up and go test