Test balance after 45. See the one-leg hold time that signals strength—and the simple progressions to improve fast.

Learn about trading legs in derivatives strategies, their roles, and types, including long straddles, collars, and iron ...

Weak glutes often play a role in common running injuries. The single-leg stance test shows you where your strength is lacking ...

You don't need lunges to build stronger legs with knee pain; just try this personal trainer's alternative, called the suitcase deadlift.