Short-range elasticity after tetanic stimulation in single muscle fibres of the frog

Acta Physiologica Scandinavica
P Haugen

Abstract

The time course of the stiffness during the relaxation period following tetanic stimulation was studied in isolated single muscle fibres of the frog. The stiffness was measured by subjecting the fibres to a sudden stretch at constant velocity from an initial sarcomere length of 2.2 microns, and related to the tension carried by the muscle fibre immediately before the stretch. Both stiffness and tension fell close to the resting level during the first second (4 degrees C) after the end of stimulation. While stiffness and tension fell proportionally during the phase of almost exponential decline in tension following the shoulder in the tension recording, the relative drop in stiffness was less than the relative drop in tension during the preceding phase of almost linear decline in tension corresponding to the first 300-400 ms after the end of stimulation.

References

Mar 1, 1978·The Journal of Physiology·F W Flitney, D G Hirst
Apr 1, 1978·The Journal of Physiology·J R BlinksS R Taylor
Aug 1, 1979·The Journal of Physiology·F J Julian, D L Morgan
Jan 1, 1979·Annual Review of Physiology·R T Tregear, S B Marston
Sep 1, 1976·The Journal of General Physiology·P Haugen, O Sten-Knudsen
Sep 1, 1975·The Journal of General Physiology·F J Julian, M R Sollins
Dec 1, 1972·The Journal of Physiology·D R Cleworth, K A Edman
Sep 1, 1973·Biophysical Journal·M Kawai, I D Kuntz
Aug 1, 1972·The Journal of Physiology·H Sugi
Oct 22, 1971·Nature·A F Huxley, R M Simmons
Jan 17, 1969·Science·D Cleworth, K A Edman
Aug 1, 1981·The Journal of General Physiology·G J Stienen, T Blangé
Jun 1, 1981·Acta Physiologica Scandinavica·P Haugen, O Sten-Knudsen
Jan 1, 1980·Annual Review of Physiology·E Eisenberg, L E Greene
Jun 1, 1960·The Journal of Physiology·B R JEWELL, D R WILKIE
Jun 23, 1949·Proceedings of the Royal Society of London. Series B, Containing Papers of a Biological Character·A V HILL

❮ Previous
Next ❯

Citations

Apr 1, 1987·Journal of Muscle Research and Cell Motility·P Haugen, O Sten-Knudsen

❮ Previous
Next ❯

Related Concepts

Trending Feeds

COVID-19

Coronaviruses encompass a large family of viruses that cause the common cold as well as more serious diseases, such as the ongoing outbreak of coronavirus disease 2019 (COVID-19; formally known as 2019-nCoV). Coronaviruses can spread from animals to humans; symptoms include fever, cough, shortness of breath, and breathing difficulties; in more severe cases, infection can lead to death. This feed covers recent research on COVID-19.

Blastomycosis

Blastomycosis fungal infections spread through inhaling Blastomyces dermatitidis spores. Discover the latest research on blastomycosis fungal infections here.

Nuclear Pore Complex in ALS/FTD

Alterations in nucleocytoplasmic transport, controlled by the nuclear pore complex, may be involved in the pathomechanism underlying multiple neurodegenerative diseases including Amyotrophic Lateral Sclerosis and Frontotemporal Dementia. Here is the latest research on the nuclear pore complex in ALS and FTD.

Applications of Molecular Barcoding

The concept of molecular barcoding is that each original DNA or RNA molecule is attached to a unique sequence barcode. Sequence reads having different barcodes represent different original molecules, while sequence reads having the same barcode are results of PCR duplication from one original molecule. Discover the latest research on molecular barcoding here.

Chronic Fatigue Syndrome

Chronic fatigue syndrome is a disease characterized by unexplained disabling fatigue; the pathology of which is incompletely understood. Discover the latest research on chronic fatigue syndrome here.

Evolution of Pluripotency

Pluripotency refers to the ability of a cell to develop into three primary germ cell layers of the embryo. This feed focuses on the mechanisms that underlie the evolution of pluripotency. Here is the latest research.

Position Effect Variegation

Position Effect Variagation occurs when a gene is inactivated due to its positioning near heterochromatic regions within a chromosome. Discover the latest research on Position Effect Variagation here.

STING Receptor Agonists

Stimulator of IFN genes (STING) are a group of transmembrane proteins that are involved in the induction of type I interferon that is important in the innate immune response. The stimulation of STING has been an active area of research in the treatment of cancer and infectious diseases. Here is the latest research on STING receptor agonists.

Microbicide

Microbicides are products that can be applied to vaginal or rectal mucosal surfaces with the goal of preventing, or at least significantly reducing, the transmission of sexually transmitted infections. Here is the latest research on microbicides.