TY - JOUR AB - coefficient of variation of the single determination METHODS was 9.6%. The same apparatus was used in all determinations. The pedalling resistance has been Equipment and procedure found to change sometimes up to 30% between calibrations when the load was less than 300 In all the tests an electrically braked bicycle kpm/min but never more than 10% at higher loads ergometer (Holmgren and Mattson 1954) was used, (Granath 1965). The same 15 patients were tested in which had been calibrated by the manufacturer some runs at low load on consecutive days, using (Elema-Schonander, Sweden) prior to the tests. other equivalent bicycle ergometers, and the varia- In all but the tests conducted during right heart tion in steady heart rate was found to stay within catheterization, which are considered in Chapter XI, the error of method stated above. the patient was in sitting position. The patients It was not considered appropriate to estimate the were instructed to pedal at constant rate, 50-70 working capacity by means of extrapolation over cycles per minute. The method of Sjostrand (Sjo- a wide interval from the heart rate end point strand 1947, 1967, Wahlund 1948) for estimation of obtained in the test. Since many of TI - IX SUBMAXIMAL BICYCLE EXERCISE TEST JF - Journal of Internal Medicine DO - 10.1111/j.0954-6820.1969.tb00340.x DA - 1969-12-12 UR - https://www.deepdyve.com/lp/wiley/ix-submaximal-bicycle-exercise-test-eZkLooUtWI SP - 78 EP - 83 VL - 185 IS - S497 DP - DeepDyve ER -