Surface Effects on Plantar Pressure Characteristics in Jogging

The purpose of this study was to explore the effect of three common sports surfaces on plantar pressure characteristics and performance of impact in lower extremity during jogging. Methods: Medilogic insole plantar pressure system® was utilized to collect plantar pressure data (including contact time, peak pressure, pressure-time integral) and pressure distribution during touch-down and toe-off phases. Grass surface, rubber running track, and concrete surface were chosen as testing surfaces. Results: During touchdown, the first peak pressure (time) and pressure-time integral within first peak period of running on the concrete were significantly greater (or earlier) than the other two. However, the pressure distribution of all insole areas (forefoot, mid-foot, heel, lateral, and medial) were similar among the three types of sports surfaces both in touch-down and toe-off. Conclusion: Surfaces with less or no cushioning would lead to a higher risk of sports injury during long-term jogging. However, the further effect of different surfaces on pressure distribution and the influence it may bring subsequently was not as distinct as expected.