Letter | Published:

pH Changes during Muscle Twitch and Tetanus

Naturevolume 187pages11191120 (1960) | Download Citation

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Abstract

DUBUISSON1–3 has shown that pH variations during muscle activity can be recorded at the muscle surface with a glass electrode, using an electrometer and a sensitive galvanometer. Displaying the d.c. amplified electromotive force changes of the glass electrode, on the screen of a cathode-ray tube, reduces the recording delay to a few msec., and makes it possible4 to estimate the time constant of the glass electrode (McInnes type), transmitting a pH step, to be about 30 msec.

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References

  1. 1

    Dubuisson, M., J. Physiol., 94, 461 (1939).

  2. 2

    Dubuisson, M., Arch. Internat. Physiol., 50, 203 (1940).

  3. 3

    Dubuisson, M., “Muscular Contraction” (C. Thomas Pub., 1954).

  4. 4

    Distèche, A., and Dubuisson, M., Rev. Sci. Instr., 25, 869 (1954).

  5. 5

    Hill, A. V., J. Sci. Instr., 26, 56 (1949).

  6. 6

    Hill, A. V., Proc. Roy. Soc., B, 136, 242 (1949).

  7. 7

    Hill, A. V., Proc. Roy. Soc., B, 137, 268 (1950).

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  1. Laboratory of General Biology, University of Liège

    • A. DISTÈCHE

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https://doi.org/10.1038/1871119a0

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