muscle contraction

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Related to Muscle twitch: muscle spasm

muscle contraction

The movement of muscle fibres in response to force or load. 

Muscle contraction types 
• Concentric—The muscle shortens in length as it overcomes resistance.
• Eccentric—The muscle increases in length to accommodate resistance.  
• Isometric—The muscle resists outside stress without exhibiting motion.
References in periodicals archive ?
The presence or absence of PAP following the treatment conditions was calculated by dividing the post-treatment resting muscle twitch force (RTFpost) by the pre-treatment resting muscle twitch force (RTFpre).
As pointed out, fasciculations or "muscle twitches" are commonly observed before overt cramping.
The initial symptoms are mainly due to stimulatory effects and include nausea and vomiting, excessive salivation, abdominal pain, pallor, high blood pressure, increased heart rate, tremor, headache, dizziness, muscle twitches, and seizures.
The symptoms of OMS include rapid, involuntary eye movements, involuntary muscle twitches, impaired speech, lethargy and irritability.
The new Bebionic 3 Myoelectric hand, which has aluminium and alloy knuckles, moves like a real human hand by responding to Nigel Ackland's muscle twitches, the Telegraph reported.
Larger amounts of several hundred milligrams or more intensify the high, but can also lead to bizarre, erratic and violent behaviour accompanied by tremors, vertigo, muscle twitches, paranoia or, with regular large doses, a toxic reaction similar to amphetamine poisoning.
(This is bulbar-onset ALS.) Many also have muscle twitches, spasms and cramps as well as a loss of muscle tissue.
* Sometimes the muscle twitches for a few seconds just before the cramp begins and after it is over.
Galvani, noting that dead muscle twitched when touched simultaneously by two different metals, had decided that electricity was involved and that it originated in the muscle (see 1780).