Instructions:

1. Lie flat on a bench with your head at one end and your feet on the floor.
2. Hold a barbell with a shoulder-width grip and extend your arms straight above your chest.
3. Keeping your arms straight, lower the barbell behind your head in a controlled manner until you feel a stretch in your lats.
4. Pause for a moment, then raise the barbell back to the starting position.
5. Repeat for the desired number of repetitions.