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Anonymous
>>430762
But it's a percentage of the contribution; certain exercises don't target one-hundred percent of the lower or upper pecs. So, the clavicular head still works somewhat during decline presses. The percentage of recruitment is merely shifted with certain exercises.
It's the same with biceps. When someone does incline curls, the long head of the biceps is more recruited, but the short head is still working.
Now, with chest work, the further the hands are up in relation to the center of gravity, the more the clavicular pectoralis is recruited. And the further the hands are near the center of gravity, the more the sternal pectoralis is recruited. So, theoretically, dips will recruit more of the sternal pectoralis than the decline press. In that way, you can think of the dip as an extreme decline press.
All that said, there's no such thing as the middle or inner chest, so obviously that nonexistent area can't be recruited by flyes or pec deck.
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