Mechanics of skeletal muscles

  • Lev Truskinovsky (Laboratoire de Mécanique des Solides, Paris)
A3 01 (Sophus-Lie room)


In contrast to inert matter, biological systems are characterized by structurally complex network architecture with domineering long range interactions. This leads, even in the absence of ATP, to highly unusual mechanical properties in both statics and dynamics. In this talk we discuss the simplest system of this type representing a segment of a muscle fiber and systematically study its peculiar thermodynamics and kinetics. Among the main macroscopic effects exhibited by our prototypical model are: the non-equivalence of soft and hard devices, the possibility of negative stiffness, coherent internal fluctuations at fixed loading and the presence of long living non-equilibrium steady states. Most intriguing, there is evidence that muscles are internally tuned to perform close to a critical point. We show that in the presence of a correlated noise, representing ATP, the system can generate active elasticity.

Katja Heid

MPI for Mathematics in the Sciences Contact via Mail

Upcoming Events of This Seminar

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  • Mar 26, 2024 tba with Phan Thành Nam
  • Mar 26, 2024 tba with Dominik Schmid
  • May 7, 2024 tba with Manuel Gnann
  • May 14, 2024 tba with Barbara Verfürth
  • May 14, 2024 tba with Lisa Hartung
  • Jun 25, 2024 tba with Paul Dario
  • Jul 16, 2024 tba with Michael Loss