Beetroot juice intake with different amounts of nitrate does not change aerobic exercise-mediated responses in heart rate variability in hypertensive postmenopausal women: A randomized, crossover and double-blind study.

ABSTRACT:

Objectives

To compare the acute effects of a single dose of beetroot juice (BJ) with different concentrations of nitrate (NO₃ ^-) on heart rate variability (HRV) in postmenopausal hypertensive women.

Methods

Thirteen hypertensive postmenopausal women (58.1 ± 4.6 years of age and 27 ± 4 kg/m² of BMI) completed the protocol that consisted of three visits with different beverage intakes in a randomized and crossover design. The three beverages were BJ with a high content of nitrate (high-NO₃ ^-), BJ with a low content of nitrate (low-NO₃ ^-), and an orange flavored non-caloric drink (OFD). Heart rate (HR) were evaluated during 20 min after sitting rest at 7:20 a.m. (baseline), after they drank one of the

SUBMITTER: Carrijo VHV 

PROVIDER: S-EPMC7772370 | biostudies-literature | 2021 Apr

REPOSITORIES: biostudies-literature