Table 3 Items and factors of TARV-Q
TARV-Q items | Factor 1 | Factor 2 | Factor 3 | Factor 4 | Cronbach alpha (single item removed) | |
|---|---|---|---|---|---|---|
Factor 1—positive attitude (variance explained = 51%; Cronbach Alpha = 0.92) | ||||||
5A | While exercising with the device, I felt: comfortable | 43 | 39 | − 39 | − 11 | 0.93 |
5D | While exercising with the device, I felt: amused | 69 | 17 | − 7 | 16 | 0.92 |
6B | While exercising with the device, I experienced: well-being | 36 | 27 | − 7 | − 20 | 0.93 |
7A | While exercising with the objects on the screen (Virtual Reality), I felt: comfortable | 82 | 20 | − 18 | − 23 | 0.91 |
7D | While exercising with the objects on the screen (Virtual Reality), I felt: amused | 80 | 18 | − 10 | − 17 | 0.91 |
8A | Seeing the score reached on the screen: makes me feel more engaged | 68 | 4 | 18 | − 36 | 0.92 |
8C | Seeing the score reached on the screen: aids me | 66 | − 9 | 25 | − 45 | 0.92 |
9 | Today, I am eager to exercise with the device | 89 | 17 | − 18 | − 1 | 0.91 |
10B | How would you describe your experience with the device to friends / relatives? Eager to return | 88 | 10 | − 12 | − 6 | 0.91 |
10A | How would you describe your experience with the device to friends / relatives? With enthusiasm | 84 | 10 | − 17 | − 16 | 0.91 |
Factor 2—usability (variance explained = 21%; Cronbach Alpha = 0.84) | ||||||
1 | It was easy to understand the exercise as requested by the device | 12 | 71 | − 18 | 9 | 0.81 |
2 | It was easy to exercise with the device | 16 | 83 | − 14 | − 9 | 0.77 |
3 | I enjoyed exercising with the device | 10 | 62 | 13 | 6 | 0.81 |
4 | Movements (walking, use of arm) improved with the device | 31 | 57 | 8 | 12 | 0.81 |
6E | While exercising with the device, I experienced: better control of my movements | 43 | 56 | − 20 | − 12 | 0.85 |
Factor 3—perception of hindrance (variance explained = 15%; Cronbach Alpha = 0.73) | ||||||
5B | While exercising with the device, I felt: uncomfortable | − 35 | − 6 | 67 | − 10 | 0.63 |
5E | While exercising with the device, I felt: awkward | 5 | 10 | 58 | 4 | 0.72 |
6D | While exercising with the device, I experienced: poor control of my movements | 35 | − 36 | 40 | 25 | 0.75 |
7B | While exercising with the objects on the screen (Virtual Reality), I felt: uncomfortable | − 2 | − 4 | 45 | − 2 | 0.71 |
7E | While exercising with the objects on the screen (Virtual Reality), I felt: awkward | − 17 | − 5 | 90 | 23 | 0.60 |
Factor 4—distress (variance explained = 13%; Cronbach coefficient alpha = 0.72) | ||||||
5C | While exercising with the device, I felt: clumsy | 33 | − 39 | 27 | 44 | 0.70 |
5F | While exercising with the device, I felt: stressed | − 18 | 15 | 6 | 42 | 0.72 |
6A | While exercising with the device, I experienced: discomfort | − 18 | − 18 | − 5 | 39 | 0.69 |
6C | While exercising with the device, I experienced: fatigue | 0 | − 43 | − 6 | 41 | 0.69 |
7C | While exercising with the objects on the screen (Virtual Reality), I felt: clumsy | − 8 | − 27 | − 6 | 59 | 0.67 |
7F | While exercising with the objects on the screen (Virtual Reality), I felt: stressed | − 23 | 10 | 2 | 53 | 0.69 |
8B | Seeing the score reached on the screen: makes me feel under pressure | − 18 | − 39 | 9 | 34 | 0.68 |
8D | Seeing the score reached on the screen: limits me | 11 | − 41 | − 5 | 25 | 0.71 |
8E | Seeing the score reached on the screen: makes me feel inadequate | − 2 | 2 | 17 | 45 | 0.69 |
Items excluded | ||||||
How would you describe your experience with the device to friends / relatives? Unsatisfied | 27 | 12 | 15 | − 14 | ||
Instructions given by the physiotherapist were useful | 26 | 35 | 3 | − 5 | ||