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Fig. 3 | Journal of NeuroEngineering and Rehabilitation

Fig. 3

From: Impact of antagonistic muscle co-contraction on in vivo knee contact forces

Fig. 3

Changes in the internal forces introduced by constraining the model to match in vivo TF forces (COC), compared to minimizing the sum of muscle stresses squared (SMSS). a The changes in TFCF per patient. b The most relevant changes of forces by individual muscle groups (light grey), and the changes in co-contraction (CCI) of the knee flexors and extensors (dark grey), averaged for all patients (mean ± SD)

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