Does acute soccer heading cause an increase in plasma S100B? A randomized controlled trial
Fig 2
Plasma S100B concentrations in the heading and kicking-control groups at each study time point (pre-, 0h post-, 2h post-, and 24h post-intervention).
Data are presented as means with the error bars representing the 95% confidence intervals. There was a significant within-group increase in plasma S100B in the heading group at 24h post-intervention relative to pre-intervention (p = 0.02). There were no other significant time, group, or group-by-time effects of soccer heading on plasma S100B concentrations.