Add Yahoo as a preferred source to see more of our stories on Google. Man performing dumbbell overhead triceps extension in mirror. Take a look around at your fellow gym-goers next time you visit the ...

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Looking to reap more gains from your arm day workouts? Upgrade your overhead triceps extension so you can pump up the big muscles on the back of your arms. In our latest episode of Little Things, ...

The triceps muscle crosses two major joints in the body -- the elbow and the shoulder. It's a critical component of upper body biomechanics and is involved in almost every arm movement that exists.

Grab a dumbbell and sit on a bench with back support. Extend your arm over your head until it is perpendicular to the floor and next to your head. Rotate your wrist so that the dumbbell is pointing to ...