School of Science and Technology, Nottingham Trent University, Nottingham, UK.
School of Science and Technology, Nottingham Trent University, Nottingham, UK.
Appl Ergon. 2021 Feb;91:103298. doi: 10.1016/j.apergo.2020.103298. Epub 2020 Nov 3.
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.
关于鞋垫材料在日常行走和负重行走时降低足底压力的功效，目前仅有有限的证据。本研究在 20 名健康参与者以自身选择的跑步机行走速度进行实验，记录了六种情况下的足底压力和主观鞋内舒适度：两种商业鞋垫或无鞋垫，以及背包内有无负重。与在足跟和前足区域添加粘弹性材料的双材料鞋垫相比，由聚氨酯制成的单一材料鞋垫具有较低的密度和压缩刚度。负重会增加整个足部的峰值压力。两种鞋垫都降低了足跟的足底压力。然而，更柔软的单一材料鞋垫也减轻了前足的压力，且聚氨酯似乎并未出现触底现象。足底压力的变化并未影响鞋内舒适度的感知。更柔软的单一材料鞋垫更有效地降低了足底压力，但进一步的研究需要确认这是否会影响受伤的发生率。
