ALEXANDRIA, Va., Sept. 23 -- United States Patent no. 12,420,142, issued on Sept. 23, was assigned to Under Armour Inc. (Baltimore).

"System and method for detecting fatigue and providing coaching in response" was invented by Jeff Knight (Austin, Texas), F. Grant Kovach (Baltimore), Paul Winsper (Portland, Ore.), Michael Mazzoleni (Baltimore) and Jeffrey Allen (Baltimore).

According to the abstract* released by the U.S. Patent & Trademark Office: "A method of operating a fitness tracking system includes receiving at least one first value and at least one second value for at least one foot action parameter from a sensor during a user workout. The method further includes determining whether the user has experienced a first type of fatigue a...