Table 4.  Brachial artery studies after supplementation. Data are means (± SE).
 

Folic Acid Group
(n = 8)

Placebo Group
(n = 5)

Heart rate (min)

61 (6)

54 (4)

Mean arterial pressure

  Systolic (mmHg)

102.5 (1.1 )

104.4 (3.0)

  Diastolic (mmHg)

65.3 (1.6)

61.0 (4.0 )

Temperature (°C)

23.1 (.8)

25.0 (.0) *

Humidity

42.2 (2.5)

46.4 (.9)

Baseline brachial artery diameter (mm)

3.1 (.1 )

3.52 (.1) **

Peak brachial artery diameter (mm)

3.4 (.1)

3.8 (.1) *

Flow-mediated dilation (%)

10.0 (.9)

6.65 (.7) *

Peak change in flow velocity (%)

100.2 (10.0 )

110.4 (8.9)
* and ** denote p < 0.05 and 0.01 respectively  according to Exact Wilcoxon Rank-Sum Test.