BELIEVE IT OR not, the skullcrusher isn't the name of a pro wrestler's signature move. It's actually a classic muscle-building exercise to isolate the triceps, the big muscles on the back of your arms ...

ROBERT FITZGERALD DIGGS—better known as RZA—helped build the hip-hop empire known as Wu-Tang Clan from gritty beats, kung fu flicks, and eight other minds that spit razor-sharp poetic philosophies.

BELIEVE IT OR not, the skullcrusher isn't the name of a pro wrestler's signature move. It's actually a classic muscle-building exercise to isolate the triceps, the big muscles on the back of your arms ...

"Very often, people arch their backs slightly during skullcrushers," says Samuel. You can't do that in the hollow body position, he says, because the position inherently forces you to operate with abs ...

One of the greatest challenges of bodyweight training is finding ways to overload your body. Yes, pushups and squats can challenge you, but, after awhile, you get comfortable moving your own ...