Effect of Change in Passive Element Behaviour on the Force Response of Hill-type Muscle Model


Örteş F.

27th International Scientific Conference MECHANIKA 2023, Kaunas, Litvanya, 26 Mayıs 2023, ss.1-5, (Tam Metin Bildiri)

  • Yayın Türü: Bildiri / Tam Metin Bildiri
  • Basıldığı Şehir: Kaunas
  • Basıldığı Ülke: Litvanya
  • Sayfa Sayıları: ss.1-5
  • İstanbul Üniversitesi-Cerrahpaşa Adresli: Hayır

Özet

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.