Table 3.

Group differences in the HRmax mean and HRmin mean (HRdiff) means for each day of the forced breathing test

GroupAcuteSubacuteWeek 1Week 2
Concussed*30.2 ± 9.527.2 ± 8.423.8 ± 9.423.3 ± 8.8
Control25.4 ± 8.825.0 ± 8.725.5 ± 7.626.4 ± 7.0
  • Values are means ± SD.

  • * There was a significant group × time interaction (F3,63 = 4.31, P = 0.01, ηp2 = 0.17), but none of the follow up comparisons reached statistical significance.