KINEMATICS ANALYSIS OF AN ANKLE INVERSION LIGAMENTOUS SPRAIN INJURY CASE IN BASKETBALL

  • Chui-Wai Ha
  • Lili Tao
  • Daniel Tik
Keywords: video analysis, injury mechanism, injury biomechanics, ankle supination sprain

Abstract

Ankle inversion ligamentous sprain is one of the most common sports injuries. Model-Based Image Matching (MBIM) motion analysis technique allows us to understand the injury mechanism quantitatively by analyzing the three-dimensional human motion. In this study, the basketball player had performed an unwanted excessive ankle inversion by landing on the foot of the opponent. The ankle joint kinematics was presented within 0.1 second after footstrike. Result had further conformed that plantarflexion is not necessarily a criterion to sprain an ankle. Internal rotation associated with a sudden inversion would be the main phenomenon. An acceleration of inversion velocity is being suggested to be another important phenomenon of ankle inversion sprain injury. The quantified data in this study can serve as a base of development to investigate ankle joint motion.
Published
2013-08-29