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A Journal on Sports Medicine

Official Journal of the Italian Sports Medicine Federation
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Medicina dello Sport 2016 June;69(2):267-80


language: English, Italian

The changes of plantar pressure under different walking speeds

Huimin ZHONG 1, Bibo WANG 2, Lei GUO 2, Bo CHEN 2, Lianfu DENG 2, Ping HUANG 2

1 Department of Physics, School of Physics and Materials Science, East China Normal University, Shanghai, China; 2 Shanghai Key Laboratory for Bone and Joint Diseases, Shanghai Institute of Orthopedics and Traumatology, Ruijin Hospital Affiliated Medical School, Shanghai Jiaotong University, Shanghai, China


BACKGROUND: Plantar pressure analysis technique has been applied in many fields; however, there is little know about the plantar pressure changes in a variety of walking speeds.
METHODS: The dynamic plantar pressures were measured for twenty-four normal subjects using seven kinds of speeds from fast to slow (130%, 120%, 110%, 100%, 90%, 80% and 70% preferred walking speed, respectively).
RESULTS: The pressure center trajectory was smooth when the subjects walked at preferred walking speed, 110%, 120% and 130% preferred walking speed. When the subjects walked at 70%, 80%, 90% preferred walking speed, the pressure center trajectory was curved, especially at 70% preferred walking speed, the pressure center trajectory was tortuous and incomplete. The plantar pressure increased in some regions of the foot with the increase of the walking speed. The impulse of the rearfoot increased when walking slowly, and the impulse of the forefoot increased when walking fast.
CONCLUSIONS: The pressure center trajectory was tortuous and incomplete and the foot movement appeared unstable when the preferred walking speed slowed down 30%. When the preferred walking speed increased by 20% or more, the plantar pressure in the forefoot increased obviously, and the forefoot bore the most of the impulses.

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