WOODLAND HILLS, Calif., Oct. 31 /PRNewswire/ — David J. Pecker, Chairman and CEO of American Media, Inc.(AMI), today announced that Chris Lockwood, Mike Carlson, and Allan Donnelly have joined the editorial staffs at Muscle & Fitness, Flex and Muscle & Fitness Hers magazines, reporting to Laya Clark and Chris Scardino, Executive Vice Presidents & Co-Publishing Directors of AMI’s Enthusiast Group. The Group includes these three publications, their web sites, Mr. Olympia, and other related events and brand extensions. In making the announcement, Mr. Pecker said, “One week after naming Laya Clark and Chris Scardino to head our Enthusiast group, we’ve completed our team by bringing in Chris Lockwood as editor-in-chief of Muscle & Fitness with Mike Carlson as his #2, and promoting Allan Donnelly to be executive editor of Flex. This gives us the most forward thinking, authoritative editorial staff of any publication that targets serious fitness enthusiasts.” Mr. Clark said, “Chris is one of the most knowledgeable writers on the planet on the subject of fitness and nutrition and his vision for Muscle & Fitness will make it the primary source for cutting edge information in these areas. With Mike Carlson as executive editor, we now have two of…