Do you think swinging a DB overhead, let's say 5 Rounds for time of 50lbs DB, 50 swings, then doing 50 sledgehammer provides any specific/unique training stimulus? Or is the training stimulus global (Cardio-Respiratory)
I would say the point of the above couplet is to provide a global training stimulus. Swinging a bell overhead, swinging a sledgehammer against a tire (not a spike) provides little specific stimulus, but creates enough of an oxygen need to work the CR system. But if the whole point is to just work the CR system, other then to prevent boredom, why not just do sprints and burpees?