It is the frequency of footsteps. When walking or running, the number of times the two legs alternate per unit time is 180. Keep the beat rate is to set your own maximum heart rate metronome on the software. Keep is an intelligent fitness platform launched by Beijing Calorie Technology Co., Ltd. in 2015. Its founder is Wang Ning. The platform provides various sports and fitness-related products such as online exercise courses, smart fitness hardware, and sports consumer goods.