Which Aspects of Postural Control Differentiate between Patients with Parkinson’s Disease with and without Freezing of Gait?
Table 3
Directional control during rhythmic weight shift.
Freezers
Nonfreezers
Controls
value (Freezers versus nonfreezers)
value (Freezers versus controls)
value (Nonfreezers versus controls)
Slow mediolateral
77 (62–77)
74.5 (69–81)
79.5 (76–83)
0.24
0.07
0.28
Moderate mediolateral
74 (71–79)
83 (76–86)
86.5 (82–88)
0.07
<0.01**
0.35
Fast mediolateral
84 (77–87)
88.5 (87–90)
87 (83–91)
0.13
0.24
0.80
Average mediolateral
79 (71–82)
80.5 (78–96)
83.5 (81–85)
0.13
0.01*
0.48
Slow anterioposterior
49 (22–67)
70 (62–79)
77 (72–83)
0.02*
<0.01**
0.089
Moderate anterioposterior
61 (38–77)
75 (70–80)
82.5 (66–87)
0.16
0.01*
0.25
Fast anterioposterior
76 (64–82)
81 (68–82)
82.5 (79–87)
0.50
0.07
0.39
Average anterioposterior
62 (43–74)
73 (70–79)
81 (76–84)
0.09
<0.01**
0.052
Estimated median interquartile range of the directional control is presented in percentage (%). *Significant difference ; **significant difference . Measurement unit is % of optimal performance.
