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Table 4 Correlation coefficients and the corresponding p-values between independent and dependent variables

From: Caffeine improves work durability and physical performance in anaerobic exercises among active adults in Tripoli Lebanon

  Aerobic exercise frequency Aerobic exercise duration Anaerobic exercise frequency
Physical performance
Correlation coefficient 0.067 − 0.012 .145*
P value 0.355 0.873 0.050
Durability
Correlation coefficient 0.096 0.018 0.157*
P value 0.182 0.806 0.032
Productivity
Correlation coefficient − 0.009 − 0.019 0.049
P value 0.904 0.805 0.508
  1. p ≤ 0.05 indicating significantly different from zero at 5% type 1 error