Journal of Rehabilitation Medicine 51-6 | Seite 36

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M. Alt Murphy et al.
Table III. Acceleration data in individuals with stroke and healthy controls for weekday and weekend measurement sessions
Stroke vs controls
Acceleration data,
SMA, m/s 2
Weekday
Median (Q1;Q3) Weekend
Median (Q1;Q3) Z-value Weekday
Z-value Weekend
Z-value
0.62 (0.50;0.70)
1.20 (0.77;1.62)
2.34 (1.20;2.90)
0.63 (0.45;0.97)
0.94 (0.75;1.12)
–0.33 (–0.60;–0.03)
–0.14 (–0.27;–0.06) 0.55 (0.45;0.66)
0.91 (0.57;1.36)
2.10 (1.88;2.59)
0.54 (0.35;0.90)
0.81 (0.59;1.10)
–0.36 (–0.67;–0.12)
–0.13 (–0.38;–0.03) –1.67
–3.67***
–2.42*
–2.02*
–2.61**
–2.07*
–0.78 –3.80***
–3.88***
–1.61
–4.04***
–3.88***
–2.22*
–3.05** –4.15***
–4.27***
–3.28**
–4.47***
–3.99***
–2.28*
–2.73**
Trunk
Affected arm
Less-affected arm
Affected leg
Less-affected leg
Ratio arm (log)
Ratio leg (log)
Controls
Trunk
Non-dominant arm
Dominant arm
Non-dominant leg
Dominant leg
Ratio arm (log)
Ratio leg (log)
1.20 (0.94;1.47)
1.14 (1.00;1.35)
2.51 (2.04;2.90) a 2.45 (2.23;2.93) a
1.93 (1.46;2.20) a 1.81 (1.50;2.01) a
2.51 (1.32;3.42) b
2.06 (1.39;2.22) b
–0.07 (–0.11;0.01)
0.01 (–0.03;0.04)
2.74 (2.59;3.23) b
1.72 (1.50;1.96) b
–0.04 (–0.12;–0.01)
0.02 (–0.01;0.05)
–0.17
–0.00
–1.12
–0.42
–0.11
–1.01
–0.73
*p  < 0.05; **p  < 0.01; ***p  < 0.001.
compared with the affected limb in stroke; b compared with the less-affected limb in stroke.
SMA: signal magnitude area; Q1: 1 st quartile; Q3: 3 rd quartile.
a
The more affected leg was also less active compared
with the less-affected leg at both sessions (z = 3.88/3.18,
p < 0.001, r = 0.58/0.48), but the asymmetry between the
legs remained the same between weekdays and week-
ends. The trunk activity showed no difference between
weekdays in participants with stroke (z = 1.67, p = 0.098,
Individuals with stroke
Fig. 2. Activity levels of (A) upper extremities, (B) lower extremities, (C) arm and leg ratios (more-affected side/less-affected side), and (D)
trunk in stroke and controls. Statistically significant differences between weekdays and weekends are indicated accordingly: p  < 0.05*, p  < 0.01**,
p  < 0.01***. Outliers are shown as black dots. (C) SMA ratio (log) equal to 0 indicates symmetry between the limbs, shown as a dotted line. SMA:
signal magnitude area; IQR: interquartile range.
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