Figure 1. Regression analyses of variables explaining differences in mean time performances (seconds) between Armstrong vs. other riders. Presented are unstandardized regression weights (b) and associated standard errors (SEb) in parentheses. The weights and SEb are in seconds per year, or in seconds to a kilometer increase in the distances of the time trials. Broken arrows indicate co-variances between variables. The unadjusted rider main effect is in bold type face

From

Lance Armstrong’s Era of Performance — Part II: Revisiting His Time Trial Wins

Hein F.M. Lodewijkx, Arjan E.R. Bos

American Journal of Sports Science and Medicine. 2014, 2(5), 194-201 doi:10.12691/ajssm-2-5-4