Background
Methods
Participants
1 | General |
1a 1b | How would you describe your experience with the iKOALA App? Have you ever used a website or app’s that have a similar purpose to iKOALA? (i.e. provides information, physical activity advice or social support). |
2 | Features |
2a | Can you tell me what the most useful features of the iKOALA app were for you? |
2b | Was there anything you didn’t use or didn’t find useful? |
2c | Can you tell me anything about the app that you thought was particularly good? |
2d | Can you tell me anything about the app that you were less keen on? |
2e | Is there anything else you would like to see included in the app? |
3 | Usability |
3a | Overall, how easy did you find it to learn how to use the app? |
3b | Did you use the information included in help function to help you understand iKOALA? |
3c | Is there anything about how the app works in general or the ease of navigating the app that you would like to comment on? |
3d | If you were to continue using iKOALA, how often do you think you would use it? |
4 | Potential for use |
4a | Do you think you would continue using this app and if so, what would you use it for mostly? |
4b | Is there anything you think would make you more likely to use iKOALA more frequently? |
4c | Is there anything else you would like to add? |
Sample size
Inclusion criteria
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Been diagnosed radiographically or clinically with knee osteoarthritis by a clinician.
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Not have had any other condition, or a treatment related to another condition that prevented them from participating in PA.
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Not currently receiving regular (i.e., weekly) treatment from a physiotherapist or other healthcare practitioner related to their KOA.
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The ability to use an Android smartphone during the study (with operating system version 8 at a minimum) and be willing to download an app onto their device.
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A willingness to wear a wrist worn activity tracker during waking hours throughout the trial.
Protocol
Outcome measures
Analysis
Results
Total participants (n = 38) | |
---|---|
Gender | |
Male | 5 (13%) |
Female | 33 (87%) |
Age | |
30–39 years | 1 (3%) |
40–49 years | 6 (16%) |
50–59 years | 16 (42%) |
60–69 years | 12 (31%) |
70–79 years | 3 (8%) |
Ethnicity | |
White - British | 36 (95%) |
Asian - Chinese | 2 (5%) |
Knees affected by OA | |
One | 10 (26%) |
Two | 28 (74%) |
Suffered with knee pain | |
Less than 1 year | 1 (3%) |
1–4 years | 12 (31%) |
5–9 years | 13 (34%) |
10–19 years | 4 (11%) |
20 + years | 8 (21%) |
Highest level of education | |
Secondary school qualifications, or equivalent (aged 16+) | 3 (8%) |
Further education, or equivalent (aged 18+) | 9 (24%) |
Foundation degree or equivalent | 5 (13%) |
Undergraduate degree equivalent | 14 (37%) |
Master’s degree or equivalent | 5 (13%) |
PhD or equivalent | 2 (5%) |
Employment status | |
Full-time employed | 11 (29%) |
Part-time employed | 8 (21%) |
Unemployed | 4 (11%) |
Retired | 15 (39%) |
Physical activity data
Variable (Mean ± SD) | Week 1 | Week 6 | Week 12 | Difference |
---|---|---|---|---|
Steps | 9102 ± 3514 | 9576 ± 4214 | 9596 ± 3694 | F = 1.863; p = .184 |
Distance (miles) | 6.10 ± 2.52 | 6.40 ± 2.90 | 6.43 ± 2.67 | F = 1.584; p = .403 |
Sedentary minutes | 778 ± 187 | 806 ± 184 | 792 ± 219 | F = 1.190; p = .312 |
Light active minutes | 229 ± 66.9 | 241 ± 75.0 | 239 ± 68.7 | F = 1.683; p = .196 |
Fairly active minutes | 23.6 ± 13.0 | 24.1 ± 18.0 | 21.2 ± 18.6 | F = 0.619; p = .543 |
Very active minutes | 31.0 ± 24.9 | 29.5 ± 31.8 | 30.3 ± 28.1 | F = 0.137; p = .872 |
MSK-HQ
Symptoms
App usage
System usability scale
Question | Modal value* | Mean (SD) |
---|---|---|
1. I think that I would like to use this app frequently | 4 | 4 (1) |
2. I found this app unnecessarily complex | 2 | 2 (1) |
3. I thought this app was easy to use | 4 | 4 (1) |
4. I think that I would need assistance to be able to use this app | 1 | 2 (1) |
5. I found the various functions in this app were well integrated | 4 | 4 (1) |
6. I thought there was too much inconsistency in this app | 2 | 2 (1) |
7. I would imagine that most people would learn to use this app very quickly | 4 | 4 (1) |
8. I found this app very cumbersome/awkward to use | 2 | 2 (1) |
9. I felt very confident using this app | 4 | 4 (1) |
10. I needed to learn a lot of things before I could get going with this app | 2 | 2 (1) |