muscle contraction

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Noun1.muscle contraction - (physiology) a shortening or tensing of a part or organ (especially of a muscle or muscle fiber)
shortening - act of decreasing in length; "the dress needs shortening"
contracture - an abnormal and usually permanent contraction of a muscle
tetanus - a sustained muscular contraction resulting from a rapid series of nerve impulses
uterine contraction - a rhythmic tightening in labor of the upper uterine musculature that contracts the size of the uterus and pushes the fetus toward the birth canal
Braxton-Hicks contraction, false labor - painless contractions of the muscles of the uterus that continue throughout pregnancy with increasing frequency
physiology - the branch of the biological sciences dealing with the functioning of organisms
Based on WordNet 3.0, Farlex clipart collection. © 2003-2012 Princeton University, Farlex Inc.
References in periodicals archive ?
The system is controlled by electrical signals from electromyogram (EMG) electrodes, which detect muscle contraction close to the area where the prosthesis is attached and the signals allow the arm to make 10 different powered movements.
Lipolysis is able to contribute less and less to the overall energy supply as muscle contraction intensity increases.
With each muscle contraction, the arch tightens, dragging its back leg forward and planting it on the surface.
Strengthening can be done through isometric exercises -- a muscle contraction with no motion.
Kelso, "The Basics of Muscle Contraction: implications for Strength Training," Maximize Your Training (Brzycki, M., ed.).
Normally, muscle contraction is powered by a molecule, the nucleotide called Adenosine-5'-triphosphate (ATP).
The subsequent breakdown of ATP provides the chemical energy to fuel muscle cells and initiate muscle contraction.
In the study, some men were made to do four sets of an isometric exercise-holding a forceful muscle contraction without movement-three days a week.
This overload will produce an involuntary muscle contraction that can occur when the fatigued muscle is at rest.
Myosin, along with the actin protein filaments, are responsible for muscle contraction.
Electrical activity is measured during muscle contraction and when resting.
For example, natural hormonelike compounds called prostaglandins influence blood pressure, inflammation, and muscle contraction. NSAIDS inhibit prostaglandin production in the body, which is how the drugs reduce inflammation.