Abstract:
:The increase in % phosphorylase a associated with muscle contraction is reversed after a few minutes despite continued contractile activity. The present study was undertaken to determine whether adrenaline can activate phosphorylase after deactivation has occurred during prolonged stimulation of contraction. We found that adrenaline reactivates phosphorylase and glycogenolysis in rat fast-twitch and slow-twitch muscles that have been stimulated to contract for 15 min. The reactivation of glycogenolysis by adrenaline could have importance in fight-or-flight situations that call for an increase in exercise intensity.
journal_name
Biosci Repjournal_title
Bioscience reportsauthors
Rennie MJ,Fell RD,Ivy JL,Holloszy JOdoi
10.1007/BF01115118subject
Has Abstractpub_date
1982-05-01 00:00:00pages
323-31issue
5eissn
0144-8463issn
1573-4935journal_volume
2pub_type
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