The energetics of work and heat production by single muscle fibres from the frog.

@article{Woledge1988TheEO,
  title={The energetics of work and heat production by single muscle fibres from the frog.},
  author={Roger C. Woledge and M. A. Whalley G. W. Wilson and J. V. Howarth and Gijs Elzinga and Kaoru Kometani},
  journal={Advances in experimental medicine and biology},
  year={1988},
  volume={226},
  pages={677-88}
}
During active shortening the heat rate in isolated muscle fibres is greater than during isometric contraction, and increases with velocity of shortening (V), but at a decreasing rate as the maximum velocity (V0) is approached. For shortening at V less than 0.25 V0 the amount of extra heat produced during a period of shortening is proportional to the distance shortened, but for rapid shortening (V greater than 0.5 V0) the extra heat increases less than proportionally with the distance shortened… CONTINUE READING

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