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Study of bicycle modifications using a motor driven treadmill-bicycle ergometer

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Summary

  1. A. 1.

    A treadmill-bicycle ergometer was described.

  2. 2.

    At a certain estimated working intensity the oxygen intake for a given subject was the same using this ergometer and the ordinary Krogh bicycle ergometer.

  3. B.

    Different bicycle modifications were tested with the following results:

  4. 1.

    The oxygen intake during cycling was not altered a) by different length of the pedal crank, b) by different head angles (65°-75°).

  5. 2.

    The quality and dimensions of the tyres affected the oxygen intake.

  6. 3.

    The working efficiency could be improved by changing the gear ratio.

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References

  1. Asmussen, E.: Acta physiol. scand. (Stockh.)10, 1 (1946).

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  2. Christensen, E. H., andP. Högberg Arbeitsphysiologie14, 249 (1950).

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  3. Fisher, R. A.: Statistical methods for research workers 10th ed. Edinburgh: Oliver and Boyd 1946.

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  4. Fisher, R. A.: Flugsport28 (1936).

  5. Grosse-Lordemann andE. A. Müller: Arbeitsphysiologie9, 619 (1937).

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  6. Hansen, E.: Scand. Arch. Physiol.51, 1 (1927).

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Authors and Affiliations

  1. Department of Physiology, Central Gymnastic Institute, Lidingövägen, Stockholm

    P. O. Åstrand

Authors
  1. P. O. Åstrand
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With 6 graphs in the text.

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Åstrand, P.O. Study of bicycle modifications using a motor driven treadmill-bicycle ergometer. Arbeitsphysiologie 15, 23–32 (1953). https://doi.org/10.1007/BF00932069

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  • DOI: https://doi.org/10.1007/BF00932069

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