| Study | Reason for exclusion |
|---|---|
| Aguilar‐Ferrándiz 2013 | This study does not have exercise as intervention |
| Carpentier 2014 | This study does not have exercise as the main intervention |
| Forestier 2014 | This study does not have exercise as the main intervention |
| Hartmann 1991 | It is not a randomised trial |
| Klonizakis 2009 | Outcomes measured are not included in the review protocol |
| Klyscz 1998 | It is not a randomised trial |
| Ramos‐González 2012 | There is no comparison between groups regarding exercise effects. All groups performed the same exercise programme |
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