How to perform
Set the bench to roughly 30 degrees. Steeper than that and it becomes a shoulder press.
Sit with the dumbbells on your thighs, then kick them up as you lie back.
Start with the dumbbells at chest level, elbows slightly tucked.
Press up and slightly inwards without clashing the dumbbells at the top.
Lower under control until you feel a stretch across the upper chest.
Common mistakes: setting the incline too steep, and pressing the dumbbells together at the top which removes tension.