LONE TREE, Colo.--(BUSINESS WIRE)--Zynex, Inc. (OTCBB: ZYXI), a provider of non-invasive medical devices for electrotherapy and stroke rehabilitation, neurological diagnosis and cardiac monitoring, announced today that it will host an investor webcast, Thursday, March 15, 2012 at 9:00 a.m. Mountain Time – 11:00 a.m. Eastern Time to discuss the Company’s 2011 year end results.