The EE stated that he was pulling on the cable and the cable stopped he then jerked the cable and he felt pain in his back. He left the job site but returned to work the next day and worked the next 4 days. EE didn't come to work on 4/19/10 and didn't call his foreman. The next day the foreman called him, EE stated that he would be off for a week or two requested by a Doctor.