Some Properties of Contractile Proteins of the Heart as Studied on the Extracted Heart Muscle Preparation | Zendy

MAX TAESCHLER | Zendy; Richard J. Bing | Zendy

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Some Properties of Contractile Proteins of the Heart as Studied on the Extracted Heart Muscle Preparation

Author(s) -

MAX TAESCHLER,

Richard J. Bing

Publication year - 1953

Publication title -

circulation research

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 4.899

H-Index - 336

eISSN - 1524-4571

pISSN - 0009-7330

DOI - 10.1161/01.res.1.2.129

Subject(s) - contraction (grammar) , muscle fibre , cardiac muscle , muscle contraction , medicine , chemistry , myocyte , anatomy , cardiology , biophysics , biology , skeletal muscle

The physiologic properties of the contractile elements (actomyosin) have been studied on the extracted heart muscle of the dog. It was found that many properties of fresh heart muscle are due to inherent qualities of the contractile proteins. For example, the speed of contraction decreased with increasing loads, the work increased with rising tension up to an optimal value, and increased fiber length resulted in greater muscle work.

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