Full tutorial here: http://www.musclehack.com/how-to-do-decline-dumbbell-bench-press-for-a-big-chest/ The Bompa, Cornacchia study showed a 4% difference in muscle fiber recruitment in favor of dumbbells over barbells. And the decline position recruited most fibers. Here is a full list of results: Decline dumbbell bench press — 93%decline-dumbbell-bench-press Decline barbell bench press——- 89% Push-ups between benches ——- 88% (disadvantage is not enough weight can be employed) Flat dumbbell bench press ——– 87% Flat barbell bench press ———– 85% Flat dumbbell flies —————– 84% For your free Targeted Hypertrophy Training workout, go here to download and see other people’s results http://www.musclehack.com/build-muscle-fast-for-free/ For a full free 12-step guide on how to build muscle fast, click here http://www.musclehack.com/how-to-build-muscle-mass-fast-complete-guide/