Construct · 1 fields · 1 citations

twitch: a standalone construct

One name. One construct. A landmark on the map.

● anchor · a standalone construct Nearest construct by meaning·not indexed
twitch1 CONSTRUCTMuscle twitchCLOSE · 1972

A single standalone construct; nearby constructs are located against it in the Collider. Tap a field for its definition, unit, and measures.

Muscle physiology

One brief contraction from a single stimulus

In muscle physiology a twitch is the single, brief contraction-then-relaxation a muscle or motor unit makes in response to one stimulus, the elementary mechanical event whose speed defines a muscle as fast or slow. Close's 1972 Dynamic properties of mammalian skeletal muscles catalogues the twitch's contraction time and half-relaxation time across muscles and shows how repeated stimuli fuse the twitch into sustained tetanus. The referent is a mechanical response measured in milliseconds of force, and it has nothing to do with the rope-and-handle device used to hold a horse still beyond the shared image of a sudden grip.[1]

Unit
The time course and peak force of a single contraction, in milliseconds and newtons
Recovery means
Not applicable
Measured by
Recorded as contraction time, peak twitch tension, and half-relaxation time from a single stimulus

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Nearby constructs

chain3 fields · 3 citationsjingle · one word, three constructscontraction4 fields · 4 citationsjingle · one word, four constructs

References

  1. Close, R. I. (1972). Dynamic properties of mammalian skeletal muscles. Physiological Reviews, 52(1), 129–197. https://doi.org/10.1152/physrev.1972.52.1.129

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