CLIMBING UP LADDER TO TRUCK, WHEN PULLING SELF UP OFF THE GROUND, PULLED MUSCLE IN LEFT SHOULDER. EXPERINECED NAGGING PAIN IN LEFT SHOULDER WHEN MOVING AND NOT MOVING. **EE REPORTED INJURY ON AUGUST 12, 2000 (SATURDAY) TO SUPERVISOR, CALLED HIM AT HOME. EE WAS ON VACATION FROM AUGUST 8, 2000 THROUGH AUGUST 20, 2000.