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Table 2 Summary of results of two-way repeated-measure analysis of variance

From: Cardiovascular hemodynamic effects of Red Bull® Energy Drink during prolonged, simulated, monotonous driving

Measures

Main effect

 

Interaction

Condition

Period

Condition × Period

F 2, 22

p

η p 2

F 2, 22

p

η p 2

F 4, 44

p

η p 2

Hemodynamics

          
 

MBP

0.08

n.s.

.007

27.2

<.001

.712

0.83

n.s.

.070

Cardiac

          
 

CO

3.19

n.s.

.225

13.8

<.001

.557

2.70

<.05

.197

 

RR

0.49

n.s.

.043

11.6

<.001

.513

7.22

<.001

.396

Vascular

          
 

TPR

0.95

n.s.

.079

12.1

<.001

.524

3.13

<.05

.221

 

ln NPV

2.81

n.s.

.203

2.10

n.s.

.160

7.76

<.001

.414

Performance

          
 

SRR

0.19

n.s.

.017

12.3

<.001

.528

0.84

<.01

.259

  

F 10, 100

p

η p 2

F 10, 110

p

η p 2

F 20, 220

p

η p 2

Subjective

          
 

KSS-J

2.42

n.s.

.180

54.9

<.001

.833

1.24

n.s.

.102

  1. Note: MBP = mean blood pressure, CO = cardiac output, RR = electrocardiogram RR interval, TPR = total peripheral-vascular resistance, lnNPV = ln-normalized pulse volume, SRR = standard deviation of the steering-wheel reversal rate, KSS-J = Japanese version of the Karolinska sleepiness scale.
  2. Each condition n = 12.