THE EE WAS SLIDING A BOX OF COR DSAMPLES ACROSS THE WASH TABLE. THE BOX HIT A WORN CORNER OF THE TABLE AND STOPPED SUDDENLY, RESULTING IN A PULLED MUSCLE IN HIS RT. ARM. THE EE CONTINUED TO WO RK UNTIL THE END OF HIS SHIFT. THE NEXT DAY HE REQUESTED MEDICAL TREATMENT AND WAS DIAGNOSED W/A STRAIN TO HIS RT. FOREARM AND PLACED ON RESTRICTED DUTY.