ALEXANDRIA, Va., Nov. 6 -- United States Patent no. 12,458,843, issued on Nov. 4, was assigned to Life Fitness LLC (Franklin Park, Ill.).

"Exercise machines and methods for controlling exercise machines to assist in targeting a muscle" was invented by Tracy Barrett (Tulsa, Okla.), Cory H. Lazar (Park Ridge, Ill.) and Juliette C. Daly (Arlington Heights, Ill.).

According to the abstract* released by the U.S. Patent & Trademark Office: "An exercise machine for assisting a user in targeting a muscle for an exercise motion. A sensor detects a current use condition while the user performs the exercise motion. The current use condition is one of multiple use conditions. A current activation level of the muscle changes within the multiple use co...