Comparison of plantar pressure distribution in adolescent runners at low vs. high running velocity

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• 作者：Franç ; ois Fourchet^a ; ^{francois.fourchet@aspire.qa} ; Luke Kelly^b ; Cosmin Horobeanu^a ; Heiko Loepelt^a ; Redha Taiar^c ; Gré ; goire P. Millet^d
• 关键词：Jogging ; Pressure ; Metatarsals ; Foot
• 刊名：Gait and Posture
• 出版年：2012
• 期刊代码：106_09666362
• 类别：med
• 出版时间：April, 2012
• 卷：35
• 期：4
• 页码：685-687
• 文件大小：292 K

摘要

This study aimed to compare foot plantar pressure distribution while jogging and running in highly trained adolescent runners. Eleven participants performed two constant-velocity running trials either at jogging (11.2 卤 0.9 km/h) or running (17.8 卤 1.4 km/h) pace on a treadmill. Contact area (CA in cm²), maximum force (F_max in N), peak pressure (PP in kPa), contact time (CT in ms), and relative load (force time integral in each individual region divided by the force time integral for the total plantar foot surface, in%) were measured in nine regions of the right foot using an in-shoe plantar pressure device. Under the whole foot, CA, F_max and PP were lower in jogging than in running (鈭?.2%[p < 0.05], 鈭?2.3%[p < 0.001] and 鈭?5.1%[p < 0.01] respectively) whereas CT was higher (+20.1%; p < 0.001). Interestingly, we found an increase in relative load under the medial and central forefoot regions while jogging (+6.7%and +3.7%, respectively; [p < 0.05]), while the relative load under the lesser toes (鈭?.4%; p < 0.05) was reduced. In order to prevent overloading of the metatarsals in adolescent runners, excessive mileage at jogging pace should be avoided.