Originally Posted by ChrisPontius
Not very important. Hearns at 147 had the strength of my red-headed 8 year-old cousin, but he hit as hard as any welter that ever lived. Same for McClellan or Louis.
NO, to be that explosive you need serious strength in your punching muscles, not necessarily muscles for show but your punching muscles, ie hips, your core, shoulders.
But technique and shifting your weight quickly using your whole body are just as important, the latter being physiological ability as much as technique