So make sure she’s seeing a sports doctor and not just a PCP. Get a external bone stim like Exogen on the shins. Get orthotics that will help with the cause of shin splints /stress fracture. Also PT to build strength
Anyway… Back to your question…
Just do a few activities for 2-4 years that they enjoy. Don’t read too much into this. No school is going to look that closely if they dropped this or that. They are more curious about the GPA, rigor and scores and accomplishments.