
Can You Pass The Big Toe Test?
Mark Sisson · July 5, 2026
Big toe dysfunction is extremely common, because it’s placed under tremendous load on every stride and we’ve inflicted years and decades of abuse to the big toe by trapping it inside a box with the other toes. A weak and dysfunctional big toe can turn into a big problem, because it’s the single most important joint in human locomotion. This article will explain why the big toe is so important to human movement and present a fun little challenge that you can perform to assess big toe functionality, and improve that functionality over time.
















































