• Corpus ID: 2532710

Skeletal muscle energy metabolism and fatigue during intense contraction in man

  title={Skeletal muscle energy metabolism and fatigue during intense contraction in man},
  author={Paul L. Greenhaff and Karin S{\"o}derlund and Eric Hultman},
The rate of skeletal muscle anaerobic A TP resynthesis is rapid when compared with aerobic resynthesis, however a high rate of anaerobic resynthesis can only be maintained for short periods of time. Table 1 shows the rates of A TP resynthesis from phosphocreatine (pCr) and glycolysis during 30s of near maximal isometrie contraction in man. Af ter only 1.3s of contraction the rate of PCr utilisation begins to decline, while the corresponding rate from glycolysis does not peak until af ter 3s of… 

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ATPase Activity of Myosin Correlated with Speed of Muscle Shortening
  • M. Bárány
  • Biology, Chemistry
    The Journal of general physiology
  • 1967
A role for the ATPase activity of myosin in determining the speed of muscle contraction is suggested and the F-actin-binding ability of myOSin from various muscles was rather constant.
Muscle power: Fibre type recruitment, metabolism and fatigue
  • In: Human
  • 1986
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  • Biochemistry of Exercise , International Series on Sport Sciences
  • 1983
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  • American Journalof Physiology 260,
  • 1991
Power output of fast and slow fibres from human skeletal muscles
  • 1986