Muscle crossbridge stroke and activity revealed by optical diffraction
- PMID: 415364
- DOI: 10.1126/science.415364
Muscle crossbridge stroke and activity revealed by optical diffraction
Abstract
Optical diffraction measurements during rapid releases of active toad muscle show that the sarcomeres contract within 1 millisecond by an amount up to but not greater than 12 nanometers. This crossbridges immediately start cycling to produce the normal contraction velocity in unloaded muscle.
Similar articles
-
Mechanical transients of single toad stomach smooth muscle cells. Effects of lowering temperature and extracellular calcium.J Gen Physiol. 1990 Apr;95(4):697-715. doi: 10.1085/jgp.95.4.697. J Gen Physiol. 1990. PMID: 2110967 Free PMC article.
-
Structural changes in muscle crossbridges accompanying force generation.J Cell Biol. 1994 Nov;127(3):763-78. doi: 10.1083/jcb.127.3.763. J Cell Biol. 1994. PMID: 7962058 Free PMC article.
-
Detection of radial crossbridge force by lattice spacing changes in intact single muscle fibers.Science. 1990 Dec 7;250(4986):1409-11. doi: 10.1126/science.2255911. Science. 1990. PMID: 2255911
-
Effects of repeated eccentric contractions on structure and mechanical properties of toad sartorius muscle.Am J Physiol. 1993 Sep;265(3 Pt 1):C792-800. doi: 10.1152/ajpcell.1993.265.3.C792. Am J Physiol. 1993. PMID: 8214035
-
Crossbridge and non-crossbridge contributions to force in shortening and lengthening muscle.Adv Exp Med Biol. 2010;682:207-21. doi: 10.1007/978-1-4419-6366-6_12. Adv Exp Med Biol. 2010. PMID: 20824528 Review.
Cited by
-
Diffraction rings obtained from a suspension of skeletal myofibrils by laser light illumination. Study of internal structure of sarcomeres.Biophys J. 1989 Dec;56(6):1113-20. doi: 10.1016/S0006-3495(89)82759-6. Biophys J. 1989. PMID: 2692720 Free PMC article.
-
Dynamic Structures through Microdifferential Holography.Biophys J. 1986 Jan;49(1):281-9. doi: 10.1016/S0006-3495(86)83641-4. Biophys J. 1986. PMID: 19431634 Free PMC article.
-
Contraction of glycerinated muscle fibers as a function of the ATP concentration.Biophys J. 1979 Nov;28(2):241-58. doi: 10.1016/S0006-3495(79)85174-7. Biophys J. 1979. PMID: 262549 Free PMC article.
-
Submillisecond rotational dynamics of spin-labeled myosin heads in myofibrils.Biophys J. 1980 Dec;32(3):873-89. doi: 10.1016/S0006-3495(80)85023-5. Biophys J. 1980. PMID: 6266538 Free PMC article.
-
On the origin of the contractile force in skeletal muscle.Proc Natl Acad Sci U S A. 1979 Oct;76(10):5066-70. doi: 10.1073/pnas.76.10.5066. Proc Natl Acad Sci U S A. 1979. PMID: 291923 Free PMC article.
MeSH terms
LinkOut - more resources
Full Text Sources