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. Author manuscript; available in PMC: 2013 Jul 5.
Published in final edited form as: Med Sci Sports Exerc. 2011 Dec;43(12):2381–2387. doi: 10.1249/MSS.0b013e31822432d4

Table 5.

Subset of subjects with increased variability in whom 3 tests were performed

First GXT (N=21) Second GXT (N=21) Third GXT (N=21)
VO2 peak (ml/kg/min) 21.7 ± 3.5* 22.4 ± 3.9 22.8 ± 3.7
VO2 peak (L/min) 1.92 ± 0.59* 1.97 ± 0.56 2.01 ± 0.54
Maximal heart rate 131 ± 23 136 ± 24 137 ± 27
Maximal ventilation 61.0 ± 19.4* 64.2 ± 20.1 66.1 ± 18.6
RQ 1.01 ± 0.09 1.03 ± 0.09 1.03 ± 0.07
Final speed during test 2.3 ± 0.5* 2.5 ± 0.6 2.5 ± 0.6
Final grade during test 12.1 ± 3.2 12.5 ± 2.7 12.6 ± 2.2

Note :

*

values for first test differed significantly (p < 0.05) than values obtained during the second and third tests.