Re: best muscles to work out for punching power
Obviously great answers here (assuming) and probably a lot of shit fights.
Long story short, for power and many other benefits. You want to work your posterior chain. Which is obviously is the chain of muscle on the posterior side of your body
The primary exercises for developing the posterior chain are the Olympic lifts, squats, good-mornings, deadlifts and hyperextension; all exercises emphasing on hip extension