Effect of changes upper elongation of running shoes and various movements on the dorsal pressure distribution

Upper Part of Footwear is crucial of running shoe for wearing comfort and product purchase but compared to other components such as shoe midsole and outsole of running shoe, quantitative studies have not been conducted. Wearing comfort of the footwear upper has also been centred on qualitative evaluation through questionnaires, but recently, the footwear industry, including the IEEE, is making various attempts to quantitatively analyse the wearing comfort of shoe. The pressure generated in the shoe occurs on the plantar and dorsal area of foot depending on the various physical activity. This pressure occurs repeatedly during high-intensity activities and causes damage to skin tissue and deformation of the musculoskeletal system (Mei et al., 2014; Mey et al., 2018). In contrast, the proper pressure distribution generated during exercise makes comfortable feeling for users. The maximum pressure generated from the instep of foot has a significant effect on the user’s perception that the shoe is comfortable (Lindorfer et al., 2020; Mo et al., 2020).