Immediate recovery after an exercise session associated with beetroot and resveratrol intake in coronary artery disease patients: A randomised crossover trial

• Subjects with CVD may have autonomic modulation impairment. • Postexercise recovery crucial for increased cardiac event risk. • Beetroot and resveratrol supplementation explored for cardioprotection. • Study investigates impact of beet extract and resveratrol on CVD recovery. Postexercise recovery is a crucial period, especially in patients with cardiovascular disease (CVD). Supplementation with nutraceutical substances has been explored due to its potential cardioprotective effects. We aimed to investigate the impact of isolated and combined ingestion of beetroot extract and resveratrol on immediate postexercise recovery. Individuals with CVD were subjected to 4 experimental protocols consisting of 30 min of aerobic exercise. Before exercise, the subjects consumed 500 mg of starch, 500 mg of beetroot extract, 500 mg of resveratrol or both substances. Heart rate recovery (HRR), heart rate variability (HRV) and blood pressure (BP) responses were evaluated. No significant differences in the HRR were detected (p = 0.719) in the RMSSD30 index (p = 0.671) or BP responses (systolic BP − p = 0.703, diastolic BP − p = 0.638) between protocols. Supplementation with beetroot extract and/or resveratrol did not promote significant changes in immediate post-exercise recovery. Registration number - clinicaltrials.gov: NCT06095635