• skeletal
  • We found that the lengths of all sarcomeres spontaneously oscillated in an isolated skeletal myofibril, when both ends were fixed, submillimolar to millimolar concentrations of ATP, ADP and inorganic phosphate (P i ) were present, and Ca 2+ was removed. (springer.com)
  • We conclude that talin 1 and 2 are crucial for skeletal muscle development, where they regulate myoblast fusion, sarcomere assembly and the maintenance of MTJs. (biologists.org)
  • It appears that, at least in the case of the skeletal muscle sarcomere, temporal control of protein synthesis may be an important part of eucaryotic molecular morphogenesis. (caltech.edu)
  • In mice lacking all three muscle ankyrin repeat proteins (MARPs), AARP, CARP, and DARP), skeletal muscles tended towards a more slower fiber type distribution, with longer resting sarcomere length, decreased fiber stiffness, expression of a longer titin isoform, greater degree of torque loss following eccentric contraction-related injury, and enhanced expression of MyoD and MLP. (wikipedia.org)
  • Length
  • the peak-to-peak amplitude of oscillation reached as much as 30% of the average sarcomere length. (springer.com)
  • From the definitions presented above, one can clearly see that optimal length is the appropriate term to describe the length at which sarcomeres produce the most force, especially when compared to resting proper , as the passive length-tension curve may shift horizontally in a muscle-specific manner (Figure 1). (movementsci.com)
  • The operating range and resting lay length of sarcomeres within a muscle appear to be heterogeneous and muscle-dependent. (movementsci.com)
  • structure
  • CICR), resulting in an increase in [Ca 2+ ] i and subsequently the binding of Ca 2+ to troponin (Tn), resulting in the subsequent formation of cross-bridges (see Figure 1 for sarcomere structure). (hindawi.com)
  • We conducted a series of experiments to demonstrate that optical scattering properties measured in whole muscle are related to changes in sarcomere structure. (spiedigitallibrary.org)
  • Although whole muscle scattering coefficients have been measured before, 4 the effects of sarcomere structure changes have not been studied. (spiedigitallibrary.org)
  • point
  • The purpose of this post is hash out some confusion regarding nomenclature and the point at which sarcomeres can produce the most force. (movementsci.com)
  • middle
  • However, things may start to become unclear when asking people what the plateau in the middle - where sarcomeres produce the most force - is called. (movementsci.com)
  • dark
  • Each sarcomere is delimited by two very dark colored bands called Z-discs or Z-lines (from the German zwischen meaning between). (wikipedia.org)