eccentric muscle contraction


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Related to eccentric muscle contraction: isometric muscle contraction, concentric muscle contraction

eccentric muscle contraction

Lengthening of the muscle as it contracts against resistance. Lowering the body from a position in which the body was supported by the flexed arms, i.e., holding onto a bar above the head, is such a contraction.
See also: contraction

ec·cen·tric mus·cle con·trac·tion

(ek-sen'trik mŭs'ĕl kŏn-trak'shŭn)
Increase in muscle tone during lengthening of the muscle such that the muscle opposes, but does not stop, movement. Movement is controlled, as in the opening of the jaw.
References in periodicals archive ?
In addition it is not known if there is any difference between the soleus and gastrocnemius in terms of the speed of response to concentric and eccentric muscle contractions, but the similarity between the patterns of these two muscles shown in Figure 1 suggests that in the rat, whatever the difference, it would be negligible.
Creatine supplementation failed to significantly influence indices elbow flexor muscle damage or rate of muscle recovery following eccentric muscle contractions.
However, the Shake Weight[R] movement appears more similar to isometric contractions of the involved muscles, as opposed to the alternating concentric and eccentric muscle contractions used with isotonic free weight training.
1997) Indices of skeletal muscle damage and connective tissue breakdown following eccentric muscle contractions.