Kinematic and Kinetic Analysis of a Biomechanical Model of Rat Hind Limb with Biarticular Muscles
This work was supported by grants from the US-German CRCNS program including NSF IIS160811.
Living Machines 2020: Biomimetic and Biohybrid Systems
This work presents a biomechanical model of rat hind limbs with biarticular muscles and includes kinematic and kinetic analyses. Our previous model only possessed antagonistic muscle pairs (extensor and flexor) to actuate each joint in the sagittal plane. In this model, we expanded the number of muscles in each limb from 6 to 8, including 3 biarticular muscles: BFP (biceps femoris Posterior), RF (Rectus femoris), and GA (Gastrocnemii). The knee flexor muscle was removed from the previous model. We also developed a new method to calculate the muscle parameter values, including the shape of the length-tension curve, which gives the muscle models more biomimetic response properties. In order to predict muscle stretch and the relationship between passive tension and step-phases during walking, we formulate the inverse kinematics for the limbs and muscles.
© Springer Nature Switzerland AG 2020
Locate the Document
Deng K., Szczecinski N.S., Hunt A.J., Chiel H.J., Quinn R.D. (2020) Kinematic and Kinetic Analysis of a Biomechanical Model of Rat Hind Limb with Biarticular Muscles. In: Vouloutsi V., Mura A., Tauber F., Speck T., Prescott T.J., Verschure P.F.M.J. (eds) Biomimetic and Biohybrid Systems. Living Machines 2020. Lecture Notes in Computer Science, vol 12413. Springer, Cham. https://doi.org/10.1007/978-3-030-64313-3_7