Table 2. Spearman's rank correlation coefficients between BIP duration and physical variables (n = 310). Variable 1 Variable 2 ρ p BIP duration (seconds) Distance per minute –.039 .494 Sprint distance per minute –.071 .214 Sprints per minute –.125 .027 Accelerations per minute –.191 .001 Decelerations per min .089 .119 ρ = Spearman’s rank correlation coefficient. p values refer to two-tailed tests. Statistically significant correlations (p < .05) are presented in bold.