Remember Me
Or use your Academic/Social account:


Or use your Academic/Social account:


You have just completed your registration at OpenAire.

Before you can login to the site, you will need to activate your account. An e-mail will be sent to you with the proper instructions.


Please note that this site is currently undergoing Beta testing.
Any new content you create is not guaranteed to be present to the final version of the site upon release.

Thank you for your patience,
OpenAire Dev Team.

Close This Message


Verify Password:
Verify E-mail:
*All Fields Are Required.
Please Verify You Are Human:
fbtwitterlinkedinvimeoflicker grey 14rssslideshare1
Cook, Matthew D.; Myers, Stephen D.; Gault, Mandy L.; Edwards, Victoria; Willems, Mark E. T. (2017)
Publisher: Springer Verlag
Languages: English
Types: Article
Subjects: QP
Purpose Blackcurrant contains anthocyanins that could alter cardiovascular function and reduce cardiovascular disease risk. We examined dose responses of New Zealand blackcurrant (NZBC) extract on cardiovascular function during supine rest. \ud Methods Fifteen endurance trained male cyclists (age: 38±12 years, height: 178±5 cm, body mass: 76±10 kg, V̇O2max: 56±8 mL∙kg-1∙min-1, mean±SD) were randomly assigned using a counterbalanced Latin square design to complete four conditions, a control of no NZBC, or one of three doses (300, 600 or 900 mg∙day-1) of NZBC extract (CurraNZTM) for seven-days with a fourteen-day washout. Cardiovascular function (i.e. blood pressure, heart rate, ejection time, cardiac output, stroke volume and total peripheral resistance) during supine rest was examined (Portapres® Model 2). \ud Results Systolic and diastolic blood pressure, heart rate and ejection time were unchanged by NZBC. A dose effect (P<0.05) was observed for cardiac output, stroke volume and total peripheral resistance. A trend for a dose effect was observed for mean arterial blood pressure. Cardiac output increased by 0.6±0.6 L·min-1 (15%) and 1.0±1.0 L·min-1 (28%) and stroke volume by 5±8 mL (7%) and 6±17 mL (18%) between control and 600, and 900 mg∙day-1, respectively. Total peripheral resistance decreased by 4±3 mmHg·L-1·min-1 (20%) and 5±9 mmHg·L-1·min-1 (20%) for 600, and 900 mg∙day-1. \ud Conclusion Seven-days intake of New Zealand blackcurrant extract demonstrated dose-dependent changes on some cardiovascular parameters during supine rest in endurance-trained male cyclists.

Share - Bookmark

Cite this article