Premium
Swimming training increases the G 4 acetylcholinesterase content of both fast ankle extensors and flexors
Author(s) -
Gisiger Victor,
Sheker Shauna,
Gardiner' Phillip F.
Publication year - 1991
Publication title -
febs letters
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.593
H-Index - 257
eISSN - 1873-3468
pISSN - 0014-5793
DOI - 10.1016/0014-5793(91)80133-n
Subject(s) - ankle , tonic (physiology) , aché , antagonist , acetylcholinesterase , chemistry , endocrinology , medicine , physical medicine and rehabilitation , anatomy , receptor , biochemistry , enzyme
The effect of endurance swimming training on AChE molecular forms was examined in 2 groups of functionally antagonist rat muscles, including ankle extensors and flexors, This exercise regimen, which entails predominant dynamic activity (i.e., involving extensive shortening) of both groups or muscles, resulted in marked selective G 4 increases in all fast muscles. The G 4 elevation exhibited by the ankle flexors was in sharp contrast to the G 4 reduction reported in these same muscles following running training, during which their action is predominantly tonic. The results strengthen the conclusion that predominantly dynamic activity increases the G 4 content of mature innervated fast muscles.