AP photo: San Francisco 49er quarterback Colin Kaepernick (7) stretches at camp in Englewood Colo on Wednesday in preparation of the game in Denver

On the San Francisco 49ers podcast with David Zizmor,  don’t use the term dead arm when referring to 49ers quarterback Colin Kaepernick that’s a medical definition. Dead arm means if your a doctor and you tell someone they have a dead arm that means their literally losing some sensation in their arm. That they can’t feel as much like a nerve issue. You hear it more often in pitchers guys whose thrown more often and a lot.

The term dead arm has been thrown around because people have heard that term before but as the 49ers are stressing Kaepernick has a tired arm not a dead arm. A tired arm the implication is that the arm is okay he’s just been over worked keep in mind that Kaepernick did not work out a lot this off season because he’s had a couple of surgeries. Surgery on his non throwing shoulder and another procedure done on his left knee.

David Zizmor does the SF 49ers podcast each week at http://www.sportsradioservice.com