“…In fact, they use accelerometers, gyroscope (Fan, 2015), and GPS (Gusenbauer, 2010) (Jain, 2017) (Lee, 2018) (Sukaphat, 2013) (Rundle, 2016) to obtain and analyze the required data. For example, Hwang et al have provided a fitness system embedded in shoes to measure steps, calorie, and biomedical information using the pressure sensors (Hwang, 2016).Adi et al have built a system to measure the heart rate, ECG signal, step count, and calorie consumption using the Smartphone's accelerometer (Pande, 2015). Pande et al used Smartphone sensors such as accelerometer and barometer to obtain energy expenditure (Kwapisz, 2011).…”