i started boxing last week an hour on thursday and an hour on friday. My triceps, ribs and shoulders were absolutly killing. Is that normal? i suppose aches are normal. However, i did a light weights session yesterday but when i did a bit of shadow boxing my left tricep when i throw a jab feels like its ripping in two. is my technique wrong or is it just newbie pains???

easy answer: if it gets better quikly its fine, your simply not used to it, a friend off mine who were used to weighttrainig tried boxing with me and he was damn sore a week