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Research Article

The influence of amaranth (Amaranthus hypochondriacus) dietary nitrates on the aerobic capacity of physically active young persons

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Figures & data

Table 1 Characteristics of study participants

Fig. 1 Study protocol. Note: ICE – increasing cycling exercise test; OB - handmade oat bar; 1–9 –days of study. (1 T) - test Nr. 1 executed at day 1 of the study; (2 T) - test Nr. 2 executed at day 4 of the study; (3 T) - test Nr. 3 executed at day 9 of the study

Fig. 2 Peak power of increasing cycling exercise (ICE) following single-dose (2 T) and long-term (3 T) doses of supplements in the experimental and placebo groups. * p < 0.05 - statistically significant difference compared to the 1 T

Fig. 3 Maximal oxygen uptake (VO2max) following single-dose (2 T) and long-term (3 T) doses of supplements in the experimental and placebo groups. * p < 0.05 - statistically significant difference compared to the 1 T

Fig. 4 First ventilatory threshold (VT1) and second ventilatory threshold (VT2) following single-dose (2 T) and long-term (3 T) doses of supplements in the experimental and placebo groups. * p < 0.05- statistically significant difference between the 2 T and 3 T

Table 2 Maximal physiological responses during increasing cycling exercise following single-dose (2 T) and long-term (3 T) doses of supplements in the experimental and placebo groups (HR - heart rate; RER - respiratory exchange ratio; [La] - blood lactate concentration)

Table 3 Effects of single and long-term use of nitrates on the indicators of work capacity of healthy and physically active persons

Availability of data and materials

The data that support the findings of this study are available on request from the corresponding Tomas Liubertas, T.L. The data are not publicly available due to General Data Protection Regulation (GRDP) of European Union (restrictions containing information that could compromise the privacy of research participants);