Automatic exercise counting and calorie calculation for outdoor exercise equipment in the park

Abstract

In this paper, we present algorithms that automatically count the number of repetitions and calculate the calories consumed on outdoor exercise equipment. Using sensed data from a tri-axial accelerometer, the proposed algorithm can reliably measure the number of repetitions on four different outdoor fitness machines. Using the same accelerometer, a calorie calculation algorithm for a lateral pull-down machine is also proposed. The experimental results prove that the proposed algorithm is robust to any deformation of the sensor direction as well as various types of exercise patterns. The average accuracy of the counting algorithm is 0.9722 (97.22 %).