Start with the correct core engagement. Lie flat on the floor with your knees bent and arms directly up above your shoulders.

Zac Efron Works on His Core With 'Baywatch' Buddy PPhilip EllisFollow Daddario credited her experience of training with Efron for Baywatch with sparking her love of fitness."My first thought was ...

The heavy session is at odds with the lightweight routine Efron's Baywatch coach shared with MH, but we'll give West a pass for the effort.