Active and passive forces of isolated myofibrils from cardiac and fast skeletal muscle of the frog.

@article{Colomo1997ActiveAP,
  title={Active and passive forces of isolated myofibrils from cardiac and fast skeletal muscle of the frog.},
  author={Francesco Colomo and Nicoletta Piroddi and Corrado Poggesi and G te Kronnie and Chiara Tesi},
  journal={The Journal of physiology},
  year={1997},
  volume={500 ( Pt 2)},
  pages={535-48}
}
1. Force measurements in isolated myofibrils (15 degrees C; sarcomere length, 2.10 microns) were used in this study to determine whether sarcomeric proteins are responsible for the large differences in the amounts of active and passive tension of cardiac versus skeletal muscle. Single myofibrils and bundles of two to four myofibrils were prepared from glycerinated tibialis anterior and sartorius muscles of the frog. Skinned frog atrial myocytes were used as a model for cardiac myofibrils. 2… CONTINUE READING

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