Table 3 Pearson correlation coefficients between several key performance determinants in a 40-m maximal shuttle run test (8 × 40-m; 20 s rest periods) and a 30-m multiple sprint test (12 × 30-m; repeated at 35 s intervals).
Fastest time
Mean time
Fatigue
Blood lactate
RPE
Pre-test
Post-test
Mid-test
End-test
Pearson r
0.83
0.83
0.71
0.47
0.77
0.51
0.85
95% CL
0.57 - 0.94
0.57 - 0.94
0.33 - 0.89
-0.03 - 0.79
0.45 - 0.92
0.01 - 0.80
0.61 - 0.95
CL = confidence limits; RPE = rating of perceived exertion