Table 4 Pearson’s correlations between CRC changes, subjective and physiological reactions during ambient water task (AWT) and cold pressure task (CPT).

From: On the cardiorespiratory coordination assessed by the photoplethysmography imaging technique

Variable

AWT

Variable

CPT

1

2

3

4

1

2

3

4

1. CRC change

   

1. CRC change

   

   

   

2. HR change

− .19

  

2. HR change

.43

  

(.56)

  

(.17)

  

3. AWT stress

.63

− .07

 

3. CPT stress

.11

.66

 

(.04)

(.84)

 

(.73)

(.02)

 

4. AWT

pain

.79

.03

.87

4. CPT pain

− .07

.65

.70

(.004)

(.93)

(< .001)

(.83)

(.02)

(.01)

  1. Reported as correlation coefficients r (p-value).
  2. Significant values are in bold.