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Updated: Mar 8, 2026

An Inertial Measurement Unit Based Method to Estimate Hip and Knee Joint Kinematics in Team Sport Athletes on the Field
Published on: May 26, 2020
Dynamic Angular Stiffness of the Ankle Joint during Running and Sprinting
Abstract:
The purpose of this study was to compare the moment-angle relationship of the ankle joint during running and sprinting to determine how the dynamic angular stiffness is influenced by different activities. For both running and sprinting, the results indicated that the ankle joint produced an exclusively extensor moment, absorbing energy during the first half of the stance phase and producing energy during the second half. The biphasic nature of the joint absorbing energy followed by the joint producing energy, while continually creating an extensor moment, was similar to a spring being compressed and allowed to extend. The dynamic stiffness of the ankle joint was 5.68 N · m/° for running and 7.38 N · m/° for sprinting. It appeared that the stiffness of the ankle joint was not a specialized characteristic of each individual but rather a specialized characteristic of the activity or demand placed upon it.
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