Whether or not the ribcage can be enlarged or expanded through specific training is a topic that continues to elicit a lot of dialogue. The theory is that vigorous leg work combined with unavoidable deep breathing deepens the chest, creating a larger “frame” while also increasing oxygen uptake, both of which set the stage for increased muscle growth. Is chest expansion “for real?” Here’s Bob Hoffman, about sixty years of age, sporting some pretty impressive ribcage development that simply wasn’t there when he was a younger man which makes for some interesting food for thought on the matter.