Table 5 Correlation coefficients (r) between daily physical activity variables and age, maturation, fatness, aerobic and anaerobic fitness for trained and untrained subjects.
Volume of
Accumulated
Activity
(min.day-1)
Duration of
Maximum
Sustained
Bouts
(min.day-1)
Daily Number of Sustained Bouts
MPA VPA
%HRR MPA VPA MPA VPA 1st Dur. 2nd Dur. 3rd Dur. 1st Dur. 2nd Dur. 3rd Dur.
Trained (n = 73)
Decimal age (years) -.25* -.23 -.15 -.08 .02 -.24* -.30* -.03 -.25* -.26* -.13
Maturation †  -.31** -.36** -.24* -.15 -.02 -.31** -.41** -.18 -.30* -.36** -.21
ΣSKF (mm) -.13 -.27* -.21 -.24* -.30** -.07 -.29* -.22 -.13 -.14 -.12
Body fat (%) -.07 -.21 -.16 -.18 -.25* -.07 -.20 -.18 -.11 -.12 -.06
Peak VO2 (mL·kg-1·min-1) .03 .08 .13 .14 .16 .04 .12 .04 .20 .20 -.02
Peak RS (km.h-1) -.16 -.06 -.01 .01 .16 -.11 -.06 .04 .01 -.09 -.08
RS2.5 (km·h-1) -.11 -.12 .13 -.15 .18 .03 -.05 -.15 .13 .13 .02
RS3.0 (km·h-1) -.16 -.14 .09 -.14 .17 -.02 -.07 -.13 .10 .09 -.01
RS3.5 (km·h-1) -.20 -.15 .06 -.13 .15 -.06 -.09 -.11 .06 .06 -.04
RS4.0 (km·h-1) -.21 -.14 .06 -.13 .16 -.08 -.08 -.07 .05 .05 -.05
Peak power (W·kg-1) -.15 -.12 -.04 .07 .07 -.17 -.08 .02 -.12 .01 -.08
Mean power (W·kg-1) -.12 -.11 -.07 .05 .06 -.13 -.05 .01 -.11 -.08 -.12
Untrained (n = 74)
Decimal age (years) -.24* -.22 -.24* -.14 -.03 -.31** -.15 -.12 -.36** -.21 .03
Maturation †  -.23* -.25* -.25* -.14 -.04 -.32** -.21 -.14 -.45** -.27* .01
ΣSKF (mm) -.43** -.34** -.33** -.29* -.26* -.26* -.28* -.38** -.26* -.33** -.26*
Body fat (%) -.38** -.28* -.27* -.23* -.23* -.19 -.23* -.33** -.19 -.24* -.23*
Peak VO2 (mL·kg-1·min-1) .35** .29* .42** .32** .38** .24* .22 .32** .38** .47** .42**
Peak RS (km·h-1) .20 .18 .28* .12 .32** .08 .17 .24* .08 .24* .37**
RS2.5 (km·h-1) .05 .01 .21 .01 .23* .08 -.11 .04 .07 .24* .13
RS3.0 (km·h-1) .09 .04 .25* .02 .25* .10 -.09 .08 .07 .24* .17
RS3.5 (km·h-1) .12 .06 .29* .02 .26* .10 -.05 .10 .05 .23* .18
RS4.0 (km·h-1) .17 .10 .29* .06 .27* .11 .01 .14 .08 .25* .25*
Peak power (W·kg-1) -.05 .01 -.01 .07 .03 -.17 .04 .11 -.13 -.06 .12
Mean power (W·kg-1) .05 .06 .07 .10 .10 -.10 .03 .19 -.14 .02 .15
†  = Spearman’s coefficients (r); See Table 2, 3 and 4 for an explanation of other abbreviations.* p < 0.05** p < 0.01