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- W2986832013 endingPage "3332" @default.
- W2986832013 startingPage "3315" @default.
- W2986832013 abstract "Increased nitric oxide (NO) bioavailability may improve exercise performance and vascular function. It remains unclear whether older adults who experience a decreased NO bioavailability may benefit from chronic NO precursor supplementation. This randomised, double-blind, trial aims to assess the effect of chronic NO precursor intake on vascular function and exercise performance in older adults (60-70 years old). Twenty-four healthy older adults (12 females) performed vascular function assessment and both local (knee extensions) and whole-body (incremental cycling) exercise tests to exhaustion before and after one month of daily intake of a placebo (PLA) or a nitrate-rich salad and citrulline (N+C, 520mg nitrate and 6g citrulline) drink. Arterial blood pressure (BP) and stiffness, post-ischemic, hypercapnic and hypoxic vascular responses were evaluated. Prefrontal cortex and quadriceps oxygenation was monitored by near-infrared spectroscopy. N+C supplementation reduced mean BP (-3.3mmHg; p=0.047) without altering other parameters of vascular function and oxygenation kinetics. N+C supplementation reduced heart rate and oxygen consumption during submaximal cycling and increased maximal power output by 5.2% (p<0.05), but had no effect on knee extension exercise performance. These results suggest that chronic NO precursor supplementation in healthy older individuals can reduce resting BP and increase cycling performance by improving cardiorespiratory responses." @default.
- W2986832013 created "2019-11-22" @default.
- W2986832013 creator A5024147816 @default.
- W2986832013 creator A5035845233 @default.
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- W2986832013 creator A5061653786 @default.
- W2986832013 creator A5070252966 @default.
- W2986832013 creator A5090738834 @default.
- W2986832013 date "2019-05-29" @default.
- W2986832013 modified "2023-10-01" @default.
- W2986832013 title "Effect of chronic nitrate and citrulline supplementation on vascular function and exercise performance in older individuals" @default.
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