Abstract: A planking device for assisting in the performance of a plank exercise. The device comprises a pair of padded arm rests coupled to a front crossbar. The front crossbar has an electronic timer operative for measuring the plank exercise duration, the timer coupled to the front crossbar. A pair of grips extend upwardly near the front of each arm rest, the grips have a starter button for selectively activating and deactivating the timer, the timer selectively activated when a plank exercise is initiated, the timer selectively deactivated when the plank exercise is completed, the timer measuring the duration of the plank exercise.