Results 11 to 20 of about 521,340 (346)

An electrooptical muscle contraction sensor [PDF]

open access: yes, 2010
An electrooptical sensor for the detection of muscle contraction is described. Infrared light is injected into the muscle, the backscattering is observed, and the contraction is detected by measuring the change, that occurs during muscle contraction ...
A Gelmetti   +10 more
core   +2 more sources

Chemical changes in the adductor muscle of the cheliped of the crayfish in relation to the double motor innervation [PDF]

open access: yes, 1938
Work from this laboratory has shown that a number of the striated muscles of the legs of the crayfish show a typical motor innervation (1). Such muscles are innervated by two motor fibers only, each causing a different type of contraction.
Bergren, W. R., Wiersma, C. A. G.
core   +2 more sources

RyR1-targeted drug discovery pipeline integrating FRET-based high-throughput screening and human myofiber dynamic Ca2+ assays. [PDF]

open access: yes, 2020
Elevated cytoplasmic [Ca2+] is characteristic in severe skeletal and cardiac myopathies, diabetes, and neurodegeneration, and partly results from increased Ca2+ leak from sarcoplasmic reticulum stores via dysregulated ryanodine receptor (RyR) channels ...
Bers, Donald M   +6 more
core   +2 more sources

Vascular smooth muscle contraction in hypertension [PDF]

open access: yes, 2018
Hypertension is a major risk factor for many common chronic diseases, such as heart failure, myocardial infarction, stroke, vascular dementia and chronic kidney disease.
Alves-Lopes, Rheure   +6 more
core   +1 more source

Glycolysis Mediated Sarcoplasmic Reticulum Ca Signal Regulates Mitochondria Ca during Skeletal Muscle Contraction [PDF]

open access: yes운동과학, 2017
PURPOSE This study was to investigate the Glycolysis mediated sarcoplasmic reticulum (SR) Ca2+ signal regulates mitochondria Ca2+ during skeletal muscle contraction by using glycolysis inhibitor.
Dae-Ryoung Park
doaj   +1 more source

Endurance training facilitates myoglobin desaturation during muscle contraction in rat skeletal muscle. [PDF]

open access: yes, 2015
At onset of muscle contraction, myoglobin (Mb) immediately releases its bound O2 to the mitochondria. Accordingly, intracellular O2 tension (PmbO2) markedly declines in order to increase muscle O2 uptake (mVO2).
Furuichi, Yasuro   +9 more
core   +1 more source

The Intriguing Dual Lattices of the Myosin Filaments in Vertebrate Striated Muscles: Evolution and Advantage

open access: yesBiology, 2014
Myosin filaments in vertebrate striated muscle have a long roughly cylindrical backbone with cross-bridge projections on the surfaces of both halves except for a short central bare zone. In the middle of this central region the filaments are cross-linked
Pradeep K. Luther, John M. Squire
doaj   +1 more source

Activation analysis of the lower limb muscles of cyclists during pedaling

open access: yesNihon Kikai Gakkai ronbunshu, 2020
It is important to elucidate the lower limb motion based on the activation of lower limb muscles during pedaling to improve pedaling performance of cyclists.
Toru TSUMUGIWA   +2 more
doaj   +1 more source

The Interacting Head Motif Structure Does Not Explain the X-Ray Diffraction Patterns in Relaxed Vertebrate (Bony Fish) Skeletal Muscle and Insect (Lethocerus) Flight Muscle

open access: yesBiology, 2019
Unlike electron microscopy, which can achieve very high resolution but to date can only be used to study static structures, time-resolved X-ray diffraction from contracting muscles can, in principle, be used to follow the molecular movements involved in ...
Carlo Knupp   +2 more
doaj   +1 more source

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