Table 2.
Correlation analysis between the VO
2
max and the estimated value and reps of the shuttle run by sex and Age.
VO
2
max
(ml/kg/min)
20m shuttle
Run (reps)
r (p)
Predicted Value
(ml/kg/min)
r (p)
Males (336)
Middle School Athletes (99)
59.3 ± 3.94
101.2 ± 13.46
.520 (< .001)
59.4 ± 2.30
.588 (< .001)
High School Athletes (82)
57.8 ± 4.88
101.5 ± 12.50
.566 (< .001)
57.4 ± 3.15
.706 (< .001)
Adult Athletes (155)
55.5 ± 4.30
102.8 ± 13.00
.596 (< .001)
55.8 ± 2.91
.634 (< .001)
Females (228)
Middle School Athletes (19)
49.5 ± 4.98
85.6 ± 14.15
.836 (< .001)
50.2 ± 3.27
.877 (< .001)
High School Athletes (61)
50.4 ± 3.34
84.0 ± 14.31
.359 (< .01)
49.4 ± 2.63
.478 (< .001)
Adult Athletes (148)
48.2 ± 3.88
82.9 ± 9.54
.512 (< .001)
48.6 ± 1.84
.505 (< .001)
Total (564)
53.8 ± 5.96
94.5 ± 15.36
.700 (< .001)
53.8 ± 5.96
.833 (< .001)
Values are means and SD; r = Pearson’s correlation coefficient between VO2 max and estimated value and reps of the shuttle run.