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Chronaxie varies across different types of tissue: fast-twitch muscles have a lower chronaxie, slow-twitch muscles have a higher one. Chronaxie is the tissue-excitability parameter that permits choice of the optimum stimulus pulse duration for stimulation of any excitable tissue.
This occurs when a muscle's motor unit is stimulated by multiple impulses at a sufficiently high frequency. Each stimulus causes a twitch. If stimuli are delivered slowly enough, the tension in the muscle will relax between successive twitches. If stimuli are delivered at high frequency, the twitches will overlap, resulting in tetanic contraction.
Latent period (epidemiology), the time interval between when an individual is infected by a pathogen and when he or she becomes capable of infecting other susceptible individuals. Muscle contraction, the time between a stimulus to the nerve and the contraction of the muscle; Virus latency, a period during which a virus remains dormant in a cell ...
The electrical charge Q can be calculated with the following equation: = (+) or =, again, where I is the current is measured in amperes multiplied by duration d. b relates to the rheobase value and c relates to the chronaxie value. Rheobase in the Weiss formula is the slope of the graph.
The rate of muscle twitch contractions and relaxations are thermally dependent (Q 10 of 2.0-2.5), whereas maximum contraction, e.g., tetanic contraction, is thermally independent. [6] Muscles of some ectothermic species. e.g., sharks, show less thermal dependence at lower temperatures than endothermic species [4] [7]
“The proportion of slow-twitch to fast-twitch muscle fibers in a particular muscle varies depending on the function of the muscle and the type of training in which an individual participates.
A fasciculation, or muscle twitch, is a spontaneous, involuntary muscle contraction and relaxation, involving fine muscle fibers. [1] They are common, with as many as 70% of people experiencing them. [1] They can be benign, or associated with more serious conditions. [1]
Donald Trump is condemning the alleged actions of Luigi Mangione and the people who defend him.. In a Dec. 17 news conference, the president-elect, 78, denounced the man accused of killing ...