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Table 3 VO 2max values from the measured VO 2max test and the submaximal tests

From: Criterion validation of two submaximal aerobic fitness tests, the self-monitoring Fox-walk test and the Åstrand cycle test in people with rheumatoid arthritis

l/min Mean (SD) p-value r-value1 p-value
Measured VO2max 2.4 (0.8) - - -
Fox-walk test 3.2 (0.9) 0.004 0.81 <0.001
Åstrand test corrected for age 2.2 (0.6) 0.039 0.82 <0.001
Åstrand test corrected for maximal HR 2.4 (0.6) 0.956 0.82 <0.001
Fox-Haskell (220-age) 2.2 (0.6) 0.037 0.82 <0.001
Tanaka (208–0.7 · age) 2.3 (0.6) 0.289 0.81 <0.001
Nes (211–0.64 · age) 2.4 (0.7) 0.752 0.81 <0.001
ml · kg 1· min -1 Mean (SD) p-value r-value p-value
Measured VO2max 33 (8) - - -
Fox-walk test 44 (2) <0.001 0.52 0.006
Åstrand test corrected for age 31 (8) 0.064 0.68 <0.001
Åstrand test corrected for maximal HR 34 (8) 0.593 0.65 <0.001
Fox-Haskell (220-age) 31 (8) 0.059 0.68 <0.001
Tanaka (208–0.7 · age) 32 (8) 0.546 0.66 <0.001
Nes (211–0.64 · age) 34 (8) 0.345 0.66 <0.001
  1. Paired t-test comparisons between the measured VO2max values and the six estimated VO2 max values and Pearson’s correlation coefficient’s between the tests (n = 27).
  2. 1Pearson’s correlation coefficient, VO2max = maximum oxygen uptake, HR = heart rate.
  3. P≤0.05 in bold.