| Study | Reason for exclusion |
|---|---|
| Benedetti 2011 | Not a randomised controlled trial |
| Ford 2017 | Not a randomised controlled trial |
| Hill 2020 | Review ‐ not an RCT |
| Hurd 2010 | Not a randomised controlled trial |
| MacKenzie 2012 | Review ‐ not a randomised controlled trial |
| Mosca 2010 | Not a randomised controlled trial |
| Okamura 2020 | Participants were university students, not children |
| Perhamre 2011 | Study not addressing flat feet |
| Perhamre 2012 | Study not addressing flat feet |
| Pothrat 2013 | Not a randomised controlled trial |
| Riccio 2009 | Not a randomised controlled trial |
| Uden 2017 | Not a randomised controlled trial |
| Yung 2011 | Participants were not children |
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