Comparison of In-Shoe Plantar Pressure Between Korean Combat Boots and Running Shoes: A Prospective Comparative Study

Category: Basic Sciences/Biologics Introduction/ Purpose: Combat boots are special shoes designed for soldiers to wear during activities in rough terrains, such as long marches or military training. Combat boots cause high plantar pressure and increase the injury rate of the lower extremities. Therefore, this study aimed to compare the difference of in-shoe plantar pressure between Korean combat boots and running shoes. We hypothesized that the newest Korean combat boots would have comparable plantar pressure distribution to running shoes. Methods: We prospectively recruited 30 asymptomatic male participants, who are considered as candidates for military services, from the local area. Two types of shoes (newly developed Korean combat boots and running shoes) were examined. Data of pedobarographic measurements were collected using the pedar ® -X in-shoe pressure measurement system. Peak pressure (PP), pressure time integral (PTI), contact area, and contact time were analyzed. Results: Both PP and PTI at the region of central and lateral forefoot (FF) were significantly higher in combat boots. The contact area of combat boots was significantly lower at the region of the hallux, 2-5 toes, medial FF, central FF, and midfoot. Contact time at the region of central FF and medial heel was significantly higher in combat boots. Conclusion: Understanding plantar pressure distribution of combat boots can be helpful in the development of combat boots and prevention of injury. Based on the results of our study, the next generation Korean combat boots should be developed to increase contact area and distribute impulse under the head of the metatarsal bone