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Keeping athletes on the field: preventing primary and secondary ACL injuries
  1. Amelia J.H. Arundale
  1. Biomechanics and Movement Science Program, University of Delaware, Newark, Delaware, USA
  1. Correspondence to Dr Amelia J.H. Arundale, Biomechanics and Movement Science Program, University of Delaware, Newark, DE 19711, USA; arundale{at}

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What did I do?

I aimed to (1) examine the changes in biomechanics and injury incidence with utilisation of the 11+ prevention programme over two soccer seasons in collegiate women, (2) establish the incidence of lower extremity injuries and career duration after ACL reconstruction (ACLR) and return Major League Soccer (MLS) and (3) quantify the effects of a secondary injury prevention programme on function, return to sport, and second ACL injury incidence in athletes after ACLR.

Why did I do it?

Due to the high incidence of ACL injuries in cutting, pivoting and jumping sports, it would change athletes’ lives if it were possible to prevent a first or a second ACL injury.1 Primary and secondary ACL injury prevention programmes have been developed but require outcomes testing to determine their efficacy and further improve their impact.

How did I do it?

Aim 1

Two collegiate women’s soccer teams performed the 11+ prevention programme2 for two seasons, while a control team performed their normal …

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