Results 61 to 70 of about 1,504,818 (288)

Comparative Study of the Chemical Composition Disparities Between Fast-twitch and Slow-twitch Muscles in Marine Teleost Fishes

open access: yesProgress in Fishery Sciences
Skeletal muscle contraction, which generates movement by pulling on the internal skeleton, is a distinctive mode of movement in vertebrates. Renowned for its flexibility, diversity, and efficiency, this mode of movement is significant for the individual ...
Huan WANG, Shufang LIU
doaj   +1 more source

Efficiency of Fast- and Slow-Twitch Muscles of the Mouse Performing Cyclic Contractions [PDF]

open access: yesJournal of Experimental Biology, 1994
ABSTRACT The mechanical efficiency of mouse fast- and slow-twitch muscle was determined during contractions involving sinusoidal length changes. Measurements were made of muscle length, force production and initial heat output from bundles of muscle fibres in vitro at 31°C.
openaire   +4 more sources

Motor units in cross‐reinnervated fast and slow twitch muscle of the cat. [PDF]

open access: yesThe Journal of Physiology, 1981
1. Isometric contractile properties of motor units were measured in cross‐reinnervated fast (flexor digitorum longus) and slow (soleus) twitch muscles of the cat. All but one cross was at least 95% pure. 2. There was a reduction in the number of motor units in all muscles, but totals remained about equal in cross‐reinnervated soleus and flexor ...
J, Bagust, D M, Lewis, R A, Westerman
openaire   +2 more sources

Effects of Resistance Exercise on Slow-Twitch Soleus Muscle of Infarcted Rats

open access: yesAntioxidants, 2023
Although current guidelines recommend resistance exercise in combination with aerobic training to increase muscle strength and prevent skeletal muscle loss during cardiac remodeling, its effects are not clear. In this study, we evaluated the effects of resistance training on cardiac remodeling and the soleus muscle in long-term myocardial infarction ...
Lidiane Moreira Souza   +14 more
openaire   +3 more sources

Benchmarking Data‐Driven Control of Octopus‐Inspired Soft Arms in Underwater Environment

open access: yesAdvanced Intelligent Systems, EarlyView.
Underwater soft robots present safe, compliant interaction, yet reproducible control remains scarce. This work presents an open benchmark for octopus‐inspired arms: a smooth, velocity‐diverse data‐collection scheme produces a compact dataset to train a vanilla policy.
Muhammad Sunny Nazeer   +6 more
wiley   +1 more source

Endurance exercise-induced histone methylation modification involved in skeletal muscle fiber type transition and mitochondrial biogenesis

open access: yesScientific Reports
Skeletal muscle is a highly heterogeneous tissue, and its contractile proteins are composed of different isoforms, forming various types of muscle fiber, each of which has its own metabolic characteristics.
Jialin Li   +7 more
doaj   +1 more source

Six-week combined exercise modulates mitochondrial dynamics (MFN1/DRP1) and oxidative stress (MDA/SOD) in fast- and slow-twitch muscles of aged rats [PDF]

open access: yesJournal of Exercise & Organ Cross Talk
Aging is associated with mitochondrial dysfunction, which leads to decreased cellular function and the development of age-related diseases. Exercise training is considered one of the most effective strategies for improving muscle cell function.
Sina Gholaminezhad Kolachahi   +2 more
doaj   +1 more source

The stiffness of slow-twitch muscle lags behind twitch tension: Implications for contractile mechanisms and behavior

open access: yes, 1979
Small, square stretches were applied during contractions of soleus and plantaris muscles in the cat to measure muscle stiffness. The stiffness of the slow-twitch soleus muscle (but not of the fast plantaris muscle) reaches a maximum after the peak in ...
F. Parmiggiani, R. B. Stein
core   +1 more source

Effects of intermittent exposure to hypobaria and cold on the microarchitecture and morphofunctional profile of rat gastrocnemius muscle

open access: yesThe Anatomical Record, EarlyView.
Abstract Intermittent hypobaric hypoxia (IHH) enhances oxygen transport, muscle metabolism, and cardiovascular health; however, the combined effects of hypobaria and cold are less well understood. Exposure to these stressful environmental factors, even intermittently, can affect skeletal muscle due to its plasticity, thereby altering its metabolic and ...
Garoa Santocildes   +3 more
wiley   +1 more source

Enhancing Meat Quality Through Dietary Fiber: Insights Into the Gut Microbiota‐Derived Short‐Chain Fatty Acids‐Muscle Axis

open access: yesAnimal Research and One Health, EarlyView.
Dietary fiber (DF) modulates meat quality through the gut‐muscle axis by reshaping gut microbiota, improving intestinal integrity, reducing inflammation, and regulating muscle metabolism. These mechanisms influence muscle fiber characteristics and post‐mortem biochemistry, thereby enhancing tenderness, juiciness, color, flavor, and nutritional value of
Zeshan Zulfiqar   +8 more
wiley   +1 more source

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