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Influence of stimulus cross talk on results of the twitch-interpolation technique at the biceps brachii muscle

โœ Scribed by Friedemann Awiszus; Birger Wahl; Ingmar Meinecke


Publisher
John Wiley and Sons
Year
1997
Tongue
English
Weight
71 KB
Volume
20
Category
Article
ISSN
0148-639X

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โœฆ Synopsis


Biceps brachii muscles of five healthy volunteers were tested with a high-resolution twitch-interpolation technique. Parameters of the electrical surface stimulation were varied. It was found that a supramaximal stimulus strength activates both biceps and triceps brachii motor units simultaneously severely affecting twitch-interpolation results. Crosstalk contamination of twitches, however, can be avoided, if submaximal stimuli are used yielding twitch-interpolation results for the biceps-brachii that are similar to those of the quadriceps muscle.


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