Dumbbell lying alternate extension

How to do it

1. 01

   Lie flat on a bench with a dumbbell in each hand, palms facing each other.

2. 02

   Extend your arms straight up over your chest, keeping a slight bend in your elbows.

3. 03

   Lower one dumbbell down towards your head, bending at the elbow, while keeping the other arm extended.

4. 04

   Pause for a moment at the bottom, then raise the dumbbell back up to the starting position.

5. 05

   Repeat with the other arm, alternating sides for the desired number of repetitions.