Simultaneous evaluation method of segments and joints angle in the latter half of contact phase during running

Shoe preferences have been reported to affect running performance and injury (Nigg et al., 2017). Therefore, understanding the shoe preference of runners is essential for designing running footwear. The ride feeling during the latter half of the contact phase is one of the key elements determining shoe preference. In this phase, dorsiflexion and plantarflexion of the metatarsophalangeal (MTP) joint and rolling forward on to the forefoot occur simultaneously and affect the ride feeling. These parameters are often independently evaluated, but no evaluation has been made that reveals their contribution to the overall running movement. Constructing such an evaluation method is important to develop a running shoe that meets the runner’s preferences.