SKID STEER OPERATING AT HIGH RPM CAUSED A QUICK, JERKY BUCKET MOTION. PERSONNEL WERE TOO CLOSE TO OPERATING EQUIPMENT. LACK OF COMPLETE COMMUNICATION BETWEEN OPERATOR AND OTHER PEOPLE. IMPROPE R EQUIPMENT CHOICE - FORK LIFT WAS BETTER CHOICE AND STANDING BY. FOOT FRACTURE MAY REQUIRE SURGERY TO PIN BONE. KNEE WILL BE FURTHER EVALUATED IN NEAR FUTURE TO DETERMINE MEDICAL PLAN.