LAUSR

Normal foot arch can guarantee normal movements of the human body (Xiong, Goonetilleke, Witana, Weerasinghe, & Au, 2010). A flatfoot (absence or collapse of the normal arch) is usually associated with pain and dysfunction. Most flatfoot of children and juveniles are congenital and may continue in the adult. The diagnosis and treatment at a very young age are helpful in the control and healing of flatfoot disorders. Currently, commonly used diagnostic methods include foot and gait observation, and imaging options(Lin et al., 2015). With the development of artificial intelligence, machine learning provides a bunch of indispensable tools for medical data analyses (Anthimopoulos, Christodoulidis, Ebner, Christe, & Mougiakakou, 2016).