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. Author manuscript; available in PMC: 2011 Feb 1.
Published in final edited form as: Neurorehabil Neural Repair. 2010 Jan;24(1):97–106. doi: 10.1177/1545968309341061

Table 1.

Main Effects and Two-way Interactions: PD vs. Control

Main Effects Velocity
(m/s)
Stride
Length (m)
Swing
Percent
Stance
Percent
Cadence
(steps/min)
Base of
Support (m)
Functional
Ambulation
Profile
Gait
Asymmetry
Group Control:
PD:
0.9±0.3
0.8±0.4
1.12±0.27
0.93±0.36
34.5±3.3
31.4±5.0
65.5±3.5
68.7±5.1
92±23
98±25
0.15 ±0.06
0.15±0.06
78±19
71±21
6.7±11
8.3±14
Task Simple:
Dual:
1.0 ±0.3
0.7±0.3
1.08±0.32
0.97±0.31
34.1±3.5
31.8±5.1
66.0±3.6
68.3±5.3
108±17
82±24
0.14±0.06
0.15±0.07
81±19
68±19
5.5±11
9.6±14
Direction Forward:
Backward:
1.0±0.3
0.65±0.3
1.22±0.32
0.82±0.29
34.1±3.6
31.7±5.0
65.9±3.6
68.4± 5.2
95±22
95±27
0.10±0.04
0.19±0.05
86±16
62±16
6.5±10
8.6±15
Group × Task
Control simple 1.0±0.3 1.16±0.27 35.3±2.5 64.8±2.3 106±12 0.15±0.06 86±15 3.8±5.1
PD simple 0.9±0.4 1.00±0.37 33.0±3.9 67.1±4.2 110±20 0.14±0.06 77±20 7.1±15
Control dual 0.7±0.3 1.09±0.27 33.8±3.9 66.3±4.2 79±23 0.15±0.07 71±19 9.7±15
PD dual 0.6±0.3 0.86±0.34 29.9±5.4 70.2±5.5 86±25 0.15±0.07 65±19 9.6±13
Direction × Task
Simple forward 1.2±0.2 1.30±0.20 35.1±2.1 64.9±2.1 107±11 0.10±0.03 95±6.7 3.7±3.5
Dual forward 0.8±0.3 1.15±0.28 33.2±4.4 66.8±4.5 83±23 0.10±0.04 78±18 9.4±14
Simple backward 0.8±0.3 0.85±0.28 33.1±4.2 67.1±4.4 109±21 0.19±0.05 67±16 7.3±15
Dual backward 0.5±0.2 0.79±0.28 30.4±5.4 69.8±5.6 82±25 0.20±0.05 57±14 9.9±14
Group × Direction
Control forward 1.0±0.3 1.29±0.22 35.3±2.6 64.7±2.6 92±21 0.10±0.04 89±16 6.4±12
PD forward 1.0±0.3 1.16±0.27 33.0±4.0 67.0±4.1 98±22 0.11±0.04 84±16 6.6±8.6
Control backward 0.7±0.3 0.95±0.24 33.8±3.8 66.4±4.0 92±24 0.20±0.04 68±15 7.1±11
PD backward 0.6±0.3 0.69±0.29 29.8±5.3 70.3±5.5 99±29 0.19±0.06 57±15 10±17

Values are means ± SDs. Shaded boxes indicate significant results.