Table 2.
ANOVA results for postural control parameters during double-leg stance across conditions.
| Condition | Effect | Statistic | COP parameter | |||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| DOT | Rsw | Rfa | SD (ML) | SD (AP) | MV (ML) | MV(AP) | TMV | Area | ||||
| DHO | Group | F-ratio | 2.00 | 1.96 | 2.71 | 2.31 | 0.95 | 3.96 | 8.29 | 0.007 | 0.79 | |
| Sig [η²] | 0.16 [0.068] | 0.16 [0.069] | 0.10 [0.102] | 0.13 [0.097] | 0.33 [0.036] | 0.053[0.103] | 0.006 [0.317] | 0.93 [0.001] | 0.37 [0.060] | |||
| Time | F-ratio | 0.14 | 0.002 | 8.34 | 0.03 | 3.93 | 0.01 | 1.45 | 0.57 | 0.05 | ||
| Sig [η²] | 0.70 [0.011] | 0.96 [0.001] | 0.006 [0.340] | 0.86 [0.002] | 0.054 [0.211] | 0.89 [0.003] | 0.23 [0.062] | 0.45 [0.056] | 0.81 [0.005] | |||
| Group × Time | F-ratio | 0.24 | 0.11 | 0.22 | 0.48 | 1.15 | 0.001 | 0.83 | 1.50 | 0.44 | ||
| Sig [η²] | 0.62 [0.019] | 0.73 [0.008] | 0.63 [0.014] | 0.49 [0.025] | 0.28 [0.073] | 0.97 [0.001] | 0.36 [0.036] | 0.09 [0.134] | 0.51 [0.041] | |||
| DHC | Group | F-ratio | 0.26 | 5.46 | 0.001 | 3.50 | 0.46 | 4.25 | 0.14 | 1.44 | 1.75 | |
| Sig [η²] | 0.60 [0.014] | 0.02 [0.159] | 0.97 [0.001] | 0.06 [0.138] | 0.50 [0.017] | 0.04 [0.129] | 0.70 [0.005] | 0.23 [0.048] | 0.19 [0.070] | |||
| Time | F-ratio | 0.21 | 0.04 | 0.005 | 0.56 | 0.21 | 4.95 | 0.01 | 0.69 | 1.26 | ||
| Sig [η²] | 0.64 [0.039] | 0.82 [0.004] | 0.94 [0.001] | 0.45 [0.030] | 0.64 [0.016] | 0.03 [0.305] | 0.90 [0.001] | 0.40 [0.058] | 0.26 [0.710] | |||
| Group × Time | F-ratio | 0.60 | 0.60 | 0.31 | 0.90 | 0.38 | 0.42 | 3.82 | 2.78 | 2.60 | ||
| Sig [η²] | 0.44 [0.010] | 0.44 [0.052] | 0.57 [0.022] | 0.34 [0.048] | 0.54 [0.029] | 0.51 [0.037] | 0.01 [0.248] | 0.04 [0.197] | 0.09 [0.136] | |||
| DSO | Group | F-ratio | 2.29 | 0.01 | 0.29 | 1.04 | 1.77 | 3.74 | 5.85 | 0.24 | 1.92 | |
| Sig [η²] | 0.13 [0.081] | 0.91 [0.001] | 0.58 [0.010] | 0.31 [0.053] | 0.19 [0.060] | 0.06 [0.109] | 0.02 [0.176] | 0.62 [0.008] | 0.17 [0.072] | |||
| Time | F-ratio | 3.25 | 0.35 | 8.79 | 0.01 | 3.61 | 0.06 | 1.62 | 0.56 | 2.47 | ||
| Sig [η²] | 0.04 [0.187] | 0.55 [0.034] | 0.005 [0.472] | 0.90 [0.001] | 0.02 [0.231] | 0.79 [0.007] | 0.20 [0.114] | 0.45 [0.054] | 0.08 [0.141] | |||
| Group × Time | F-ratio | 1.12 | 4.09 | 0.08 | 1.56 | 1.04 | 1.85 | 0.15 | 0.05 | 1.68 | ||
| Sig [η²] | 0.29 [0.074] | 0.05 [0.291] | 0.77 [0.009] | 0.21 [0.068] | 0.31 [0.080] | 0.06 [0.166] | 0.69 [0.012] | 0.81 [0.006] | 0.20 [0.100] | |||
| DSC | Group | F-ratio | 0.97 | 3.60 | 2.64 | 1.54 | 0.10 | 1.90 | 1.80 | 0.41 | 0.64 | |
| Sig [η²] | 0.32 [0.033] | 0.06 [0.139] | 0.11 [0.082] | 0.22 [0.065] | 0.75 [0.004] | 0.17 [0.066] | 0.18 [0.057] | 0.52 [0.012] | 0.42 [0.023] | |||
| Time | F-ratio | 8.60 | 15.58 | 3.48 | 12.04 | 8.55 | 6.90 | 1.11 | 5.57 | 0.21 | ||
| Sig [η²] | 0.006 [0.422] | 0.001 [0.470] | 0.06 [0.248] | 0.001 [0.407] | 0.006 [0.410] | 0.01 [0.343] | 0.29 [0.097] | 0.02 [0.446] | 0.003 [0.450] | |||
| Group × Time | F-ratio | 0.54 | 1.44 | 0.45 | 0.54 | 0.001 | 1.48 | 1.24 | 0.47 | 0.77 | ||
| Sig [η²] | 0.46 [0.044] | 0.23 [0.076] | 0.50 [0.041] | 0.46 [0.030] | 0.99 [0.001] | 0.23 [0.101] | 0.27 [0.107] | 0.49 [0.064] | 0.38 [0.059] | |||
Center of pressure (COP); Double-leg stance on a hard surface with eyes open (DHO); Double-leg stance on a hard surface with eyes closed (DHC); Double-leg stance on a soft surface with eyes open (DSO); Double-leg stance on a soft surface with eyes closed (DSC); Total displacement of center of pressure (DOT); Range of sideways displacement (Rsw); Range of fore/aft displacement (Rfa); Standard deviation (SD); Mean velocity (MV); Total mean velocity (TMV); Anteroposterior (AP); Mediolateral (ML); Bold denotes statistically significant values (p < 0.05).