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Abstract
This study aims to investigate the changes in the cushioning characteristics of running shoes, particularly those with ethylene vinyl acetate (EVA) as midsole material, with mileage. Fifteen amateur runners participated in the study. Each participant ran for 500 km wearing a pair of these types of shoes. The cushioning characteristics of the shoes, specifically peak force and energy return, were measured before and after every 50 km running. The cushioning characteristics of running shoes changed with increasing mileage. On average, there was a 4.88% (95% CI = 3.40–6.36%) increase in peak force after 500 km of running. The results were inconsistent with those reported based on machine-simulated running studies, which overevaluated the cushioning deterioration of running shoes.