Richard Simmons’ death has officially been ruled an accident. The fitness guru was found dead at his house in LA last month after emergency workers responded to a 911 call from his housekeeper, and a new report issued by Los Angeles’ Medical Examiner has explained how he passed away after a fall. The report, which was obtained by People magazine, listed Richard’s cause of death as “sequelae of blunt traumatic injuries” that were caused by a “ground level fall,” with “arteriosclerotic cardiovascular disease” also cited as a “contributing condition.” The documents stated: “Per reports, he experi…