Effects of montmorency tart cherry (L. Prunus Cerasus ) consumption on nitric oxide biomarkers and exercise performance

Keane, Karen, Bailey, Stephen, Vanhatalo, Anni, Jones, Andrew and Howatson, Glyn (2018) Effects of montmorency tart cherry (L. Prunus Cerasus ) consumption on nitric oxide biomarkers and exercise performance. Scandinavian Journal Of Medicine & Science In Sports, 28 (7). pp. 1746-1756. ISSN 0905-7188

Full text not available from this repository. (Request a copy)
Official URL: http://dx.doi.org/10.1111/sms.13088

Abstract

The purpose of this study was to investigate the effects of Montmorency tart cherry juice (MC) on nitric oxide (NO) biomarkers, vascular function, and exercise performance. In a randomized, double‐blind, placebo (PLA)‐controlled, crossover study, 10 trained cyclists (mean ± SD; VO2peak 59.0 ± 7.0 mL/kg/min) acutely ingested 30 mL of either MC or PLA following dietary restrictions of polyphenol‐rich compounds and completed 6‐minutes moderate‐ and severe‐intensity cycling bouts 1.5 hour post‐ingestion on 2 occasions for each experimental condition. The severe‐intensity cycling test was continued to exhaustion on 1 occasion and immediately followed by a 60‐seconds all‐out sprint on the other occasion. Blood pressure, pulse wave measures, tissue oxygenation index, and plasma nitrite concentration were assessed pre‐ and 1.5 hour post‐ingestion. Time to exhaustion was not different between conditions (P > .05), but peak power over the first 20 seconds (363 ± 42 vs 330 ± 26 W) and total work completed during the 60‐seconds all‐out sprint (21 ± 3 vs 19 ± 3 kJ) were 10% higher in the MC trial compared to the PLA trial (P < .05). Systolic blood pressure was 5 ± 2 mm Hg lower 1.5 hour post‐MC supplementation compared to PLA supplementation (P < .05). There were no differences in pulse wave measures, plasma nitrite concentration, or tissue oxygenation between the MC and PLA trials (P > .05). These results suggest that acute supplementation with MC can lower blood pressure and improve some aspects of exercise performance, specifically end‐sprint performance, in trained cyclists.

Item Type: Article
Uncontrolled Keywords: blood pressure, exercise performance, nitric oxide, tart cherries
Subjects: B400 Nutrition
C600 Sports Science
Department: Faculties > Health and Life Sciences > Sport, Exercise and Rehabilitation
Depositing User: Becky Skoyles
Date Deposited: 22 May 2018 10:37
Last Modified: 28 Jun 2018 10:30
URI: http://nrl.northumbria.ac.uk/id/eprint/34309

Actions (login required)

View Item View Item

Downloads

Downloads per month over past year

View more statistics


Policies: NRL Policies | NRL University Deposit Policy | NRL Deposit Licence