Clinical Study

Reinforced Feedback in Virtual Environment for Rehabilitation of Upper Extremity Dysfunction after Stroke: Preliminary Data from a Randomized Controlled Trial

Table 1

Effects of experimental and control treatments on functional and kinematics outcomes.

RFVETR
Pre-testPost-testPre-testPost-test

Overall
Functional
 F-M UE43.0 ± 14.7
(36.64–49.36)

(44.42–55.32)
46.3 ± 17.5
(38.36–54.31)
49.5 ± 16.2
(42.13–56.92)
 FIM87.6 ± 29.6
(74.82–100.48)

(93.44–113.26)
96.6 ± 24.6
(85.35–107.80)
104.6 ± 18.2* 
(96.32–112.91)
Kinematics
 Time (s)11.7 ± 17.4
(9.75–13.61)

(5.94–7.80)
9.6 ± 13.2
(8.03–11.27)
8.1 ± 11.1* 
(6.73–9.45)
 Speed (cm/s)15.7 ± 6.9
(14.93–16.46)

(CI 20.04–22.52)
15.6 ± 7.1
(14.74–16.48)
18.8 ± 10.6* 
(17.54–20.14)
 Peak ( )13.4 ± 12.6
(12.03–14.81)
9.9 ± 12.6* 
(8.53–11.32)
12.8 ± 11.6
(11.39–14.22)
10.1 ± 12.8* 
(9.36–12.50)
Posthemorrhagic group outcomes
Functional
 F-M UE 38.6 ± 19.3 
(24.74–52.46)
47.6 ± 15.1* 
(36.79–58.41)
47.6 ± 17.5
(35.03–60.17)
51.5 ± 16.4
(39.75–63.25)
 FIM71.0 ± 32.2
(47.96–94.04)

(72.49–113.71)
94.8 ± 26.0
(76.18–113.42)
107.7 ± 17.2* 
(95.37–120.03)
Kinematics
 Time (s)13.5 ± 18.9
(10.40–16.69)

(6.44–9.42)
8.5 ± 7.0
(7.21–9.82)
6.5 ± 7.2* 
(5.18–7.86)
 Speed (cm/s)15.1 ± 6.7
(14.40–16.63)
20.1 ± 10.1* 
(18.44–21.81)
16.3 ± 7.1
(15.02–17.65)
20.5 ± 9.3* 
(18.73–22.18)
 Peak ( )15.4 ± 13.7
(13.17–17.73)
11.6 ± 12.7* 
(9.54–13.77)
13.0 ± 12.6
(10.67–15.34)
11.2 ± 11.9
(8.99–13.40)
Postischemic group outcomes
Functional
 F-M UE46.3 ± 9.2
(40.77–52.0)
51.6 ± 10.5* 
(45.22–58.01)
45.1 ± 18.2
(32.92–57.44)
47.7 ± 16.6
(36.53–58.92)
 FIM100.4 ± 20.6
(87.98–112.95)
111.2 ± 13.6* 
(103.0–119.46)
98.1 ± 24.4
(81.73–114.64)
101.8 ± 19.4
(88.75–114.89)
Kinematics
 Time (s)10.1 ± 16.0
(7.75–12.55)
6.0 ± 7.8* 
(4.83–7.17)
10.5 ± 16.5
(7.83–13.26)
9.3 ± 13.3
(7.13–11.50)
 Speed (cm/s)15.8 ± 7.1
(14.79–16.91)

(20.43–24.02)
15.0 ± 7.0
(13.88–16.20)
17.6 ± 11.4* 
(15.70–19.43)
 Peak ( )11.7 ± 11.3
(10.06–13.45)
8.5 ± 12.3* 
(6.65–10.35)
12.6 ± 10.7
(10.88–14.40)
10.7 ± 13.5* 
(8.50–12.95)

Data are displayed as mean and standard deviation and 95% confidence interval in brackets.
RFVE: reinforced feedback in virtual environment training; TR: traditional rehabilitation treatment; F-M UE: Fugl-Meyer upper extremity; FIM: functional independence measure; time: mean duration of movement; speed: mean velocity of movement; peak: mean number of submovement; * within group analysis (Wilcoxon test); between group analysis (Mann–Whitney test).