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| Yes | No |
| Have you ever had a sprained ankle being unable to put weight on your foot, or having to resort to crutches? | £ | £ |
| If you answered YES, please proceed to the next question. If you answered NO, your questionnaire ends here. Thanks. |
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| Yes | No |
| After the first sprain, did you repeat the injury one or more times? | £ | £ |
| Do you feel that your ankle is unstable or sometimes gives you the feeling of failing or giving away? | £ | £ |