Research Article
Quantitative Analysis of Postural Balance in Faller and Nonfaller Patients with Parkinson’s Disease
Table 2
Comparison of postural balance variables between faller and nonfaller patients.
| COP outcome measures | Directions | Faller (n = 32, men = 14) Mean (SD) | Nonfaller (n = 32, men = 14) Mean (SD) | Significance ( value) |
| Mean velocity (mm/s) | Overall | 17.41 (9.45) | 11.67 (6.12) | 0.01 | AP | 12.32 (5.94) | 8.87 (5.40) | 0.02 | ML | 9.58 (6.95) | 5.75 (2.66) | 0.01 |
| Mean distance (mm) | Overall | 7.50 (3.98) | 5.67 (1.92) | 0.02 | AP | 4.96 (2.39) | 4.07 (1.49) | 0.08 | ML | 4.54 (2.93) | 3.04 (1.45) | 0.01 |
| Mean frequency (Hz) | Overall | 0.40 (0.17) | 0.35 (0.16) | 0.26 | AP | 0.48 (0.19) | 0.43 (0.26) | 0.31 | ML | 0.41 (0.22) | 0.37 (0.11) | 0.33 |
| Peak frequency (Hz) | Overall | 0.40 (0.09) | 0.37 (0.07) | 0.19 | AP | 0.37 (0.10) | 0.35 (0.07) | 0.30 | ML | 0.36 (0.11) | 0.34 (0.07) | 0.29 |
| Peak power (mm2/Hz) | Overall | 1031.86 (1130.21) | 497.42 (347.01) | 0.01 | AP | 1583.28 (1163.87) | 747.42 (351.51) | P < 0.001 | ML | 1907.72 (2322.22) | 843.40 (1376.53) | 0.30 |
| Sway area | | 823.23 (1235.08) | 337.20 (192.06) | 0.04 |
|
|
Note: COP, center of pressure; SD, standard deviation; AP, anterio–posterior; ML, medio–lateral. Bold values: P < 0.05.
|