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Indirect determination of maximal aerobic power output during work with one or two limbs

  • C. T. M. Davies
  • A. J. Sargeant
Article

Abstract

The cardiac frequency (f H ) and oxygen intake (\(\dot V_{O_2 } \)) responses to submaximal and maximal work with 1- and 2-arms and 1- and 2-legs on suitably modified bicycle ergometers in relation to the prediction of maximal aerobic power output (\(\dot V_{{\text{O}}_{{\text{2max}}} }\)) have been examined in 12 healthy male subjects.

The results showed that the physiological responses to the different forms of submaximal and maximal exercise were distinct and dependent upon the effective muscle mass used to perform the work. The observed \(\dot V_{{\text{O}}_{{\text{2max}}} }\) of 1-limb could be converted to respective 2-limb value with a coefficient of variation ranging from 4 to 7%, but maximal work with the arms gave no guide to that of the legs. Extrapolation of the \(\dot V_{O_2 } \)/f H curve to the f H max in 1-leg (175 beats/min) and 2-arm (165 beats/min) resulted in an overestimation of \(\dot V_{{\text{O}}_{{\text{2max}}} }\) of +70 ± 200 ml · min−1 and +70 ± 240 ml · min−1; but in 1-arm work (153 beats/min), \(\dot V_{{\text{O}}_{{\text{2max}}} }\) was underestimated by −70 ± 270 ml · min−1. The bias in predictions for the 3 forms of exercise could be removed by applying the appropriate regression equations relating predicted to observed \(\dot V_{{\text{O}}_{{\text{2max}}} }\), but the overall accuracy of the extrapolation method was limited to ± 8%, ± 15% and ± 23% in 1-leg, 2-arm and 1-arm work respectively.

It was concluded that maximal work with the upper and lower limbs should be treated separately and if an accuracy of greater than ± 8 to ± 23% is required in situations where through injury, two limb exercise cannot be performed, attempts should be made to ascertain the \(\dot V_{{\text{O}}_{{\text{2max}}} }\) of a single limb directly.

Key words

Arm Work Leg Work \(\dot V_{{\text{O}}_{{\text{2max}}} }\) Prediction Single Limb Aerobic Power 

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References

  1. 1.
    Asmussen, E., Hemmingsen, I.: Determination of maximum working capacity at different ages in work with the legs or arms. Scand. J. clin. Lab. Invest. 10, 67–71 (1958)Google Scholar
  2. 2.
    Åstrand, P.-O.: Experimental studies of physical working capacity in relation to sex and age. Copenhagen: Munksgaard 1952Google Scholar
  3. 3.
    Åstrand, P.-O., Rhyming, I.: A nomogram for calculation of aerobic capacity (physical fitness) from pulse rate during submaximal work. J. appl. Physiol. 7, 218 (1954)Google Scholar
  4. 4.
    Åstrand, P.-O., Rodahl, K.: Textbook of work physiology. New York: McGraw-Hill 1970Google Scholar
  5. 5.
    Åstrand, P.-O., Saltin, B.: Maximal oxygen uptake and heart rate in various types of muscular activity. J. appl. Physiol. 16, 977–981 (1961)Google Scholar
  6. 6.
    Binkhorst, R. A., van Leeuwen, P.: A rapid method for the determination of aerobic capacity. Arbeitsphysiologie 19, 459–467 (1963)Google Scholar
  7. 7.
    Bobbert, A. G.: Comparison of three types of ergometry. J. appl. Physiol. 15, 1007–1014 (1960)Google Scholar
  8. 8.
    Davies, C. T. M.: Limitations to the prediction of maximum oxygen intake from cardiac frequency measurements. J. appl. Physiol. 24, 700–706 (1968)Google Scholar
  9. 9.
    Davies, C. T. M., Sargeant, A. J.: Physiological responses to standardised arm work. Ergonomics (in press, 1974)Google Scholar
  10. 10.
    Davies, C. T. M., Tuxworth, W., Young, J. M.: Physiological effects of repeated exercise. Clin. Sci. 39, 247–258 (1970)Google Scholar
  11. 11.
    Dunér, H.: Oxygen uptake and working capacity in man during work on the bicycle ergometer with one and both legs. Acta physiol. scand. 46, 55–61 (1959)Google Scholar
  12. 12.
    Freyschuss, U., Strandell, T.: Circulatory adaptation to one- and two-leg exercise in supine position. J. appl. Physiol. 25, 511–515 (1968)Google Scholar
  13. 13.
    Gleser, M. A.: Effects of hypoxia and physical training on haemodynamic adjustments to one legged exercise. J. appl. Physiol. 34, 565–569 (1973)Google Scholar
  14. 14.
    Jones, P. R. M., Pearson, J.: Anthropometric determination of leg fat and muscle plus bone volume in young male and female adults. J. Physiol. (Lond.) 204, 63 P (1969)Google Scholar
  15. 15.
    Margaria, R., Aghemo, P., Rovelli, E.: Indirect determination of maximum oxygen consumption in man. J. appl. Physiol. 20, 1070–1073 (1965)Google Scholar
  16. 16.
    Maritz, J. S., Morrison, J. F., Peter, J., Strydom, N. B., Wyndham, C. H.: A practical method of estimating an individual's maximal oxygen intake. Ergonomics 4, 97–122 (1961)Google Scholar
  17. 17.
    Pernow, B., Saltin, B.: Availability of substrates and capacity for prolonged heavy exercise in man. J. appl. Physiol. 31, 416–422 (1971)Google Scholar
  18. 18.
    Taylor, H. C., Buskirk, E., Henschel, A.: Maximum oxygen intake as an objective measure of cardiorespiratory fitness. J. appl. Physiol. 8, 73–80 (1955)Google Scholar
  19. 19.
    Wyndham, C. H., Strydom, N. B., Maritz, J. S., Morrison, J. F., Peter, J., Potgieter, Z. U.: Maximum oxygen intake and maximum heart rate during strenuous work. J. appl. Physiol. 14, 927–936 (1959)Google Scholar

Copyright information

© Springer-Verlag 1974

Authors and Affiliations

  • C. T. M. Davies
    • 1
  • A. J. Sargeant
    • 1
  1. 1.MRC Environmental Physiology Unit, London School of Hygiene and Tropical MedicineUniversity of LondonUK

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