Training injuries are bound to happen to all of us. There is always a way to continue training even through injury. 

 

For CrossFitters, perhaps instead of your workout of the day being an Amrap make it As Many Quality Reps as Possible.

 

For runners, you may need to modify volume and adding some strength or resistance training along with A different modality for conditioning like biking or rowing. 

 

Again injury is bound to happen but it does not mean you have to stop training. Being committed to keeping the habit of regular movement and being willing to modify things is the best perspective.