Table 1

 Age, height, body weight, and maximal exercise data for groups with different test status for the maximal exercise test

BoysGirls
ValidNon-validNo V˙o2 data†Not willing to be testedValidNon-validNo V˙o2 data†Not willing to be tested
Values are mean (SD).
*Significant difference between valid test groups and other groups: p<0.05.
†Children performing a maximal test with no recording of V˙o2.
‡Mass was not a Gaussian distribution. Therefore data were log transformed and a mean was calculated and then back transformed to a geometric mean.
Number3092028728317293
Age (years)6.8 (0.4)6.7 (0.3)6.7 (0.4)6.9 (0.4)6.7 (0.4)6.6 (0.3)6.6 (0.4)6.4 (0.4)
Stature (m)1.24 (0.05)1.23 (0.05)1.23 (0.06)1.23 (0.05)1.22 (0.05)1.20 (0.04)*1.23 (0.04)1.21 (0.01)
Mass (kg)‡24.6 (3.7)24.4 (3.3)24.7 (3.2)24.3 (4.6)23.9 (3.2)22.6 (3.2)25.0 (4.5)22.8 (1.3)
Heart rate (beats/min)196 (9)174 (8) *193 (9)199 (9)179 (6) *196 (11)
Test time (min:s)8:06 (1:55)5:53 (1:16)*7:39 (1:39)7:28 (1:36)4:50 (0:55)*6:46 (1:33)*
o2max (litres/min)1.19 (0.18)0.99 (0.24)*1.06 (0.16)0.76 (0.16)*