27th International Scientific Conference MECHANIKA 2023, Kaunas, Litvanya, 26 Mayıs 2023, ss.1-5, (Tam Metin Bildiri)
Hill-type
mechanical muscle model is a useful tool to calculate muscle forces in
musculoskeletal simulations. The model incorporates contractile unit and
passive components representing the active force produced by the cross-bridges
and passive force originated from the elasticity of remaining elements in the
skeletal muscles such as connective tissues, titin etc. Passive force
production has been shown to be quite influential regarding the model's force
response. In this study, the model including different characteristics
belonging to the passive element in the model was used to simulate muscle
forces. In order to examine the effect of passive contribution change, passive
muscle force was moved to the left on the force-length relationship of the
muscle. According to simulation results,
the stiffening of the passive element depending on the active stretch leads to
change in the total muscle force in dynamic contractions. This finding shows a
meaningful implication for modelling of skeletal muscles using Hill-type muscle
models.