Table 2.

Group differences in resting HR, SBP, and DBP for each test day

Variable/GroupAcuteSubacuteWeek 1Week 2
HR, beats/min
    Concussed69.8 ± 9.7871.8 ± 10.970.3 ± 13.869.2 ± 9.2
    Control68.6 ± 14.367.3 ± 12.469.7 ± 13.368.5 ± 8.9
SBP, mmHg
    Concussed143.6 ± 20.5*129.2 ± 15.2128.7 ± 14.3127.6 ± 19.0
    Control126.6 ± 11.1124.4 ± 12.9127.5 ± 7.9125.4 ± 10.5
DBP, mmHg
    Concussed83.8 ± 16.573.5 ± 7.972.1 ± 12.272.8 ± 15.6
    Control73.5 ± 5.768.1 ± 8.7371.7 ± 5.674.1 ± 8.8
  • Values are means ± SD. HR, heart rate; SBP, systolic blood pressure; DBP, diastolic blood pressure. A MANOVA analysis of these three variables indicated a significant interaction (F9,13 = 2.92, P = 0.03, ηp2 = 0.67), and a post hoc mixed-methods ANOVA revealed that the source of the interaction was with SBP (F3,63 = 3.22, P = 0.03, ηp2 = 0.13).

  • * Significant difference between the concussed and control participants (t21 = 2.44, P = 0.02, d = 1.03).