Originally Posted by bballchump11
Lifting weights is good for boxing, but only if you know what you're doing. Also lifting the wrong way can make you stiff and slow and lose flexibility. If you do everything properly, then this won't be and issue.
edit: Also lifting can interfere with skill work and technique if you do it too often and spend time lifting that could have been spend perfecting your moves. Lets say you lift hard 5 days out the week. Your muscles will be too won out to focus on hitting the bag and mitts. So I'd only lift maybe twice a week on the same muscle
Also bulk muscles tired easy and slows you down.