Table 1 Sperm size and swimming performance.

Pearson correlations of mean sperm head plus midpiece length per male and swimming performance of sperm at 180 s after sperm release (all N = 23). Significant correlations are highlighted in bold.

LinearityBeat cross
frequency
Mean head
displacement
VAPVSL
r0.5510.649−0.2920.5330.605
P0.0060.0010.1770.0060.002