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Table 4 Cerebro- and cardio-vascular responses to submaximal exercise in COPD and controls

From: Cerebrovascular responses to submaximal exercise in women with COPD

 

Exercise 1

Exercise 2

 

COPD

Control

COPD

Control

 

BL1

EX1

BL1

EX1

P

BL2

EX2

BL2

EX2

P

Cerebrovascular

          

V ¯ P , cm ⋅ s - 1

42.8 ± 10.4

52.4 ± 10.3

44.2 ± 13.6

50.2 ± 13.3

*

40.2 ± 12.1

51.1 ± 11.5

43.8 ± 12.5

48.7 ± 11.9

* †

  %

 

25 ± 22

 

15 ± 13

*

 

31 ± 26

 

13 ± 10

* # †

CVC, cm·s -1 ·mmHg -1

0.46 ± 0.11

0.47 ± 0.09

0.49 ± 0.15

0.50 ± 0.15

 

0.45 ± 0.13

0.46 ± 0.90

0.47 ± 0.14

0.49 ± 0.15

 

  %

 

5 ± 15

 

3 ± 8

  

9 ± 27

 

4 ± 8

 

Cardiovascular

          

HR, bpm

67 ± 7

93 ± 11

66 ± 8

90 ± 14

*

69 ± 8

101 ± 10

71 ± 12

92 ± 15

* †

MBP, mmHg

94.5 ± 8.7

113.7 ± 18.1

92.0 ± 13.2

101.8 ± 12.7

* †

95.4 ± 9.6

112.9 ± 27.0

94.5 ± 15.2

103.7 ± 24.2

*

  %

 

20 ± 13

 

11 ± 8

*

 

18 ± 22

 

9 ± 10

*

Sa o 2 ,%

94 ± 2

91 ± 4

95 ± 1

94 ± 2

* # †

95 ± 1

91 ± 4

96 ± 1

95 ± 1

* # †

  1. Abbreviations: V ¯ P ; Peak cerebral blood flow velocity; CVC, cerebrovascular conductance (CVC = V ¯ P /MBP); MBP, Mean arterial blood pressure; HR, Heart rate; Sao 2, Arterial oxygen saturation; * P ≤ 0.05 (main effect of exercise); # P ≤ 0.05 (main effect of grouping); † P ≤ 0.05 (exercise x grouping interaction).
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BMC Pulmonary Medicine

ISSN: 1471-2466

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