There are far fewer muscle fibers inserted into the chest collarbone. While these muscle fibers are also involved in the brachial supply, it is the angle at which the humerus is moved through the body which target Upper Chest.Have a well developed chest not only contributes to the “fullness” of the upper body, it also has functional advantages. Sufficient size and strength contribute to greater strength in the bench press and Barbell Barbell Overhead Press.
The upper chest area is by far the chest region hardest to build. The Middle and Lower chest are somewhat “easier” to develop, due to being involved in more exercises – like a flat bench press or a decline of release. You are more likely to be higher in these years, due to the majority of the thoracic muscle fibers being oriented in this direction.pectoral muscle
#1 Incline Cable Fly
#2 Incline Dumbbell Bench Press
#3 Incline Barbell Bench Press