Effect of muscle stretch during isometric contraction on the time-course or relaxation in mammalian myocardium.

R. Bottinelli; C. Poggesi; L. Ricciardi; C. Reggiani

Effect of muscle stretch during isometric contraction on the time-course or relaxation in mammalian myocardium.

R. Bottinelli, C. Poggesi, L. Ricciardi, C. Reggiani

Istituti Clinici Scientifici Maugeri Spa – Società Benefit

Research output: Contribution to journal › Article › peer-review

Abstract

The effect of stretch on the time-course of relaxation has been investigated in rat papillary muscle. In control conditions, a quick stretch carried out at or after the peak of an isometric twitch promotes an earlier and faster relaxation. Following inotropic interventions which decelerate the activation decay rate (caffeine addition and Ca2+ replacement with Sr2+) the onset and time-course of relaxation are unaffected by the stretch.

Original language	English
Pages (from-to)	184-190
Number of pages	7
Journal	Bollettino della Societa Italiana di Biologia Sperimentale
Volume	58
Issue number	5
Publication status	Published - Mar 15 1982

ASJC Scopus subject areas

Medicine(all)

Cite this

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abstract = "The effect of stretch on the time-course of relaxation has been investigated in rat papillary muscle. In control conditions, a quick stretch carried out at or after the peak of an isometric twitch promotes an earlier and faster relaxation. Following inotropic interventions which decelerate the activation decay rate (caffeine addition and Ca2+ replacement with Sr2+) the onset and time-course of relaxation are unaffected by the stretch.",

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AU - Poggesi, C.

AU - Ricciardi, L.

AU - Reggiani, C.

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N2 - The effect of stretch on the time-course of relaxation has been investigated in rat papillary muscle. In control conditions, a quick stretch carried out at or after the peak of an isometric twitch promotes an earlier and faster relaxation. Following inotropic interventions which decelerate the activation decay rate (caffeine addition and Ca2+ replacement with Sr2+) the onset and time-course of relaxation are unaffected by the stretch.

AB - The effect of stretch on the time-course of relaxation has been investigated in rat papillary muscle. In control conditions, a quick stretch carried out at or after the peak of an isometric twitch promotes an earlier and faster relaxation. Following inotropic interventions which decelerate the activation decay rate (caffeine addition and Ca2+ replacement with Sr2+) the onset and time-course of relaxation are unaffected by the stretch.

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ER -

Effect of muscle stretch during isometric contraction on the time-course or relaxation in mammalian myocardium.

Abstract

ASJC Scopus subject areas

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