HOME HELP FEEDBACK SUBSCRIPTIONS ARCHIVE SEARCH TABLE OF CONTENTS		QUICK SEARCH:   [advanced] Author: Keyword(s): Year:  Vol:  Page:

This Article Full Text (PDF) Services Email this article to a friend Similar articles in this journal Similar articles in PubMed Alert me to new issues of the journal Download to citation manager Citing Articles Citing Articles via Google Scholar Google Scholar Articles by Gibbs, C. L. Articles by Ricchiuti, N. V. Search for Related Content PubMed PubMed Citation Articles by Gibbs, C. L. Articles by Ricchiuti, N. V.

1. The average resting heat production of a muscle under zero tension is 24·8 mcal/g muscle .min at 20° C. In the majority of muscles examined the resting heat production increases when the resting tension and muscle length are increased.

2. The relation between actively developed tension and heat produced is similar to that existing in skeletal muscle. The plot of heat against developed tension can be obtained either by altering muscle length or by varying the stimulus frequency.

3. The mean maximum total efficiency work/(work + heat) in the work experiments was 11·6%. The total energy produced (work + heat) correlates with the load rather than with the work done.

4. In isotonic contractions more heat is liberated than the heat versus tension plot predicts. This extra heat is load-dependent.