muscle contraction

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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.
Segen's Medical Dictionary. © 2012 Farlex, Inc. All rights reserved.
References in periodicals archive ?
Although we found differences in the expression and phosphorylation of [Ca.sup.2+] sensitization and contractile proteins between gastric muscles from nondiabetic and diabetic patients, it is unknown whether obesity alone affects the expression and phosphorylation of these proteins.
Salidroside increases the expression of the smooth muscle contractile proteins, desmin, and [alpha]-SMA and decreases the expression of the corpora cavernosum smooth muscle synthetic protein, vimentin.
Although both supplements were similar in energy and nitrogen content, the group that received CM demonstrated greater gains in 1 RM strength, lean body mass, fiber cross sectional area, and contractile protein content.
Abnormalities of Contractile Proteins. The most characterized potentially abnormal component of the contraction apparatus in asthmatic ASM is MLCK, a key regulator of ASM contraction.
Because of the coexpression of contractile proteins (smooth muscle actin and desmin) and melanocytic markers (HMB-45, and Melan-A or MART-1), LAM cells are suggested to be of perivascular epithelioid cell origin.
We would like to understand the factors regulating contractile protein, MHC, and skeletal muscle adaptations in response to altered use, loading states, and neural activation patterns after stroke.
These contractile proteins pass through a series of steps, triggered by calcium, which bring actin and myosin together into crossbridges.
Contractile proteins in chemical signal transduction in plant microspores.
The copresence of animal protein from meat, fish or poultry (the 'MFP' factor) enhances absorption due to the presence of peptides that arise from digestion of the contractile proteins, actin and myosin.
Careful consideration should also be given to post-translational glycosylation and function, for example, enzymatic activity, pathogenesis related-proteins, and contractile proteins (protein families).
Moreover they suggest that, in investigations where dynamic changes in the orientation of GFP-linked motor or contractile proteins are being followed, the use of polarized light might well increase the sensitivity of the observations.