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Table 1 Effects of diesel exposure on heart rate, blood pressure and markers of arterial stiffness

From: Experimental exposure to diesel exhaust increases arterial stiffness in man

 

Air

(n = 12)

Diesel exhaust

(n = 12)

Significance

Time, mins

+10

+20

+30

+10

+20

+30

-

Heart rate, bpm

57 ± 2

55 ± 2

55 ± 2

57 ± 2

55 ± 2

54 ± 2

P = 0.66

Systolic BP, mmHg

118 ± 2

114 ± 2

115 ± 3

114 ± 2

114 ± 2

115 ± 3

P = 0.26

Diastolic BP, mmHg

67 ± 2

65 ± 2

66 ± 2

65 ± 2

68 ± 2

67 ± 3

P = 0.48

MAP, mmHg

80 ± 2

78 ± 2

79 ± 2

79 ± 2

81 ± 3

81 ± 3

P = 0.57

Augmentation pressure, mmHg

-2.3 ± 0.7

-2.2 ± 0.8

-2.5 ± 0.7

0.2 ± 0.9

-1.3 ± 0.9

-1.8 ± 0.8

P = 0.01

Augmentation index, %

-7.0 ± 2.3

-7.4 ± 2.6

-7.9 ± 2.2

0.8 ± 3.2

-3.8 ± 3.5

-5.8 ± 2.7

P = 0.02

Time to wave reflection, ms

187 ± 8

189 ± 11

180 ± 7

171 ± 11

163 ± 9

180 ± 8

P = 0.03

  1. Values are Mean ± SEM;
  2. diesel exhaust versus filtered air (repeated measures ANOVA)
  3. BP = blood pressure; MAP = mean arterial pressure