There is limited evidence on the efficacy of insole materials to reduce plantar pressure during regular walking and loaded walking. In-shoe plantar pressures and subjective footwear comfort were recorded in twenty healthy participants at a self-selected treadmill walking speed in six conditions: two commercial insoles or no insole, and with or without carrying a load in a backpack. A single-material insole, comprised of polyurethane, had reduced density and compressive stiffness compared to a dual-material insole with added viscoelastic material in rearfoot and forefoot regions. Load carriage increased peak pressure across the foot. Both insoles reduced plantar pressure in the rearfoot. Yet, the softer single-material insole also attenuated forefoot pressure and loaded walking did not appear to cause bottoming-out of the polyurethane. Plantar pressure changes did not affect perceived footwear comfort. The softer single-material insole was more effective in reducing plantar pressure, further research would confirm if this influences injury prevalence.

关于鞋垫材料在常规步行和负重步行过程中降低足底压力的功效的证据有限。在六个条件下，以二十种健康参与者以自行选择的跑步机行走速度记录了鞋内足底压力和主观鞋类舒适度：两种商业鞋垫或无鞋垫，以及是否在背包中承受负荷。与在后脚和前脚区域添加粘弹性材料的双材料鞋垫相比，由聚氨酯制成的单材料鞋垫的密度和抗压刚度降低。装载车增加了整个脚部的峰值压力。两种鞋垫均降低了后脚的足底压力。然而，较软的单一材料鞋垫也减轻了前脚的压力，而且步行行走似乎并未引起聚氨酯触底。足底压力变化不会影响感知的鞋类舒适度。较软的单一材料鞋垫在降低足底压力方面更有效，进一步的研究将证实这是否会影响受伤率。