Table 1. Association between running shoe classification according to the manufacturer and barefoot rearfoot motion. Barefoot rearfoot motion Running shoe classification χ2 p-value Neutral Supination Overpronation Neutral 31.5% 31.5% 37.0% 4.058 0.398 Overpronator 16.7% 33.3% 50.0% Supinator 32.4% 40.7% 26.9%