Elite sprinters' AI values could be classified as high arches, and their PPD tended to parallel the features of runners and high-arched runners. These findings correspond to the profile of patellofemoral pain syndrome (PFPS)-related plantar pressure. The pain profiles seemed to resonate with the symptoms of high-arched runners and PFPS. A possible link between high-arched runners and PFPS warrants further study.

This chapter investigates the research projects and prototypes related to currently available mobile applications used in wayfinding and navigation. The advancement in small-screen devices, mobile computing and modelling counterpart, location awareness techniques, and wireless technologies have improved screen resolutions and provided technical solutions for delivering textual, 2D, and 3D information to a mobile device. After investigating small-screen representations and the related navigation content and mobile interface design from the previous cases, two suggestions are presented in this chapter in order to enhance the design for future mobile wayfinding systems: 1) pseudo-3D representations and 2) personalised and on-demand services.