Muscle thixotropy as a tool in the study of proprioception

@article{Proske2014MuscleTA,
  title={Muscle thixotropy as a tool in the study of proprioception},
  author={Uwe Proske and Anthony Tsay and Trevor J. Allen},
  journal={Experimental Brain Research},
  year={2014},
  volume={232},
  pages={3397-3412}
}
When a muscle relaxes after a contraction, cross-bridges between actin and myosin in sarcomeres detach, but about 1 % spontaneously form new, non-force-generating attachments. These bridges give muscle its thixotropic property. They remain in place for long periods if the muscle is left undisturbed and give the muscle a passive stiffness in response to a stretch. They are detached by stretch, but reform at the new length. If the muscle is then shortened, the presence of these bridges prevents… CONTINUE READING