To run your best, you need strength in the muscles of your arms, core, legs, and glutes so you can propel yourself forward.

Eccentric movement is the controlled lengthening of a muscle under tension (like lowering a dumbbell), while concentric movement is the shortening of a muscle as it contracts (when you’re lifting the ...

However, the back-bead is often not uniformly generated owing to the change that occurs in the narrow gap between the base metals during butt joint GMAW, which substantially influences weldability.