Table 4.
Control |
Acute Folic Acid Ingestion |
Chronic Folic Acid Ingestion |
|||||||
---|---|---|---|---|---|---|---|---|---|
5 kg | 9 kg | 14 kg | 5 kg | 9 kg | 14 kg | 5 kg | 9 kg | 14 kg | |
ΔHeart rate, beats/min | 3 ± 1 | 5 ± 1* | 9 ± 1† | 4 ± 1 | 6 ± 1* | 9 ± 1† | 4 ± 1‡ | 7 ± 1*‡ | 10 ± 1†‡ |
ΔMean arterial pressure, mmHg | 2 ± 1 | 3 ± 1 | 7 ± 1*† | 3 ± 1 | 5 ± 1 | 6 ± 1*† | 3 ± 1‡ | 6 ± 1‡ | 9 ± 1*†‡ |
ΔCardiac output, l/min | 0.4 ± 0.1 | 0.5 ± 0.1 | 0.6 ± 0.1* | 0.4 ± 0.1 | 0.6 ± 0.1 | 0.8 ± 0.2* | 0.2 ± 0.1§ | 0.3 ± 0.1§ | 0.4 ± 0.1*§ |
ΔStroke volume, ml | 2 ± 1 | 1 ± 1 | 0 ± 1 | 1 ± 1 | 3 ± 2 | 2 ± 2 | −1 ± 1‡§ | −1 ± 1‡§ | −4 ± 1‡§ |
Values are expressed as means ± SE.
Main effect of exercise intensity, P < 0.05 vs. 5 kg;
main effect of exercise intensity, P < 0.05 vs. 9 kg;
main effect of condition, P ≤ 0.05 vs. control;
main effect of condition, P ≤ 0.05 vs. acute folic acid ingestion.