Official websites use .gov
A
.gov website belongs to an official
government organization in the United States.
Secure .gov websites use HTTPS
A lock (
) or https:// means you've safely
connected to the .gov website. Share sensitive
information only on official, secure websites.
Survival curves for athletes sorted by navicular–medial malleolus (NMM) distance based on the Cox regression model. The gray dotted line represents athletes with NMM distance <4.65 cm (group 1); the black line represents athletes with NMM distance ≥4.65 cm (group 2).
