We all know that Kelly Ripa [1] is ripped. Her secret weapon? Workouts with trainer Anna Kaiser of AKT in Motion [2]. And here is a 10-minute arm workout from Anna for you to try. You will tone and sculpt sexy, shapely shoulders while working your entire body. Now that's efficient! Grab a set of dumbbells, between three and eight pounds, and get ready to work your arms, legs, and core.