One-Arm Side Laterals
Exercise Data
Main Muscle Worked: Shoulders
Other Muscles Worked: None
Equipment: Dumbbell
Mechanics Type: Isolation
Tips: Using one arm at a time, you will be able to handle roughly 30 percent more weight than in the standard two-arm version. Strap the working hand into the dumbbell handle, then hold onto something steady with the other, such as an adjustable incline bench or the uprights of a power rack. Leaning into the working shoulder and away from what you're holding onto, use just a touch of body English to power up the dumbbell until it's level with your shoulder. Attempt to bring it to a full stop, then lower slowly. This exercise is undefeated for slapping on meat onto the all-important side deltoid heads.