PL EN


Preferences help
enabled [disable] Abstract
Number of results
1998 | 58 | 2 | 165-168
Article title

The area under the record of contractile tension: estimation of work performed by a contracting motor unit

Content
Title variants
Languages of publication
EN
Abstracts
EN
The area under twitch tension records was measured for motor units in rat medial gastrocnemius. These measures were compared to measures of tension. The tension varied in significantly larger range than the area. The area of slow motor units was similar to the area of fast resistant units, whereas their tensions differed significantly. The area depended mainly on the amplitude of contraction and to a smaller degree on its time course. The measure of area under the tension record gives a more exact evaluation of the work performed by contracting motor units than the measure of tension alone. The obtained results show that motor units in mammalian muscle are less variable in their ability to perform contractile work and moreover, that slow motor units play a more significant role during contractions than was supposed based on tension measures.
Keywords
References
Document Type
article
Publication order reference
J. Celichowski, Department of Neurobiology, University School of Physical Education, 10 Droga Debinska St., 61-555 Poznan, Poland
YADDA identifier
bwmeta1.element.element-from-psjc-cf677205-7173-3d66-8aa8-b2c965ce89e3
Identifiers
JavaScript is turned off in your web browser. Turn it on to take full advantage of this site, then refresh the page.