Next Article in Journal
Profiling of Junior College Football Players and Differences between Position Groups
Next Article in Special Issue
Coffee and Caffeine Ingestion Have Little Effect on Repeated Sprint Cycling in Relatively Untrained Males
Previous Article in Journal
Greater Strength Drives Difference in Power between Sexes in the Conventional Deadlift Exercise
Previous Article in Special Issue
Betalain-Rich Concentrate Supplementation Improves Exercise Performance in Competitive Runners
Article Menu

Export Article

Open AccessArticle
Sports 2016, 4(3), 42; doi:10.3390/sports4030042

Beneficial Effects of New Zealand Blackcurrant Extract on Maximal Sprint Speed during the Loughborough Intermittent Shuttle Test

Department of Sport and Exercise Sciences, University of Chichester, College Lane, Chichester, PO19 6PE West Sussex, UK
*
Author to whom correspondence should be addressed.
Academic Editor: Beat Knechtle
Received: 21 June 2016 / Revised: 9 July 2016 / Accepted: 14 July 2016 / Published: 5 August 2016
(This article belongs to the Special Issue Sport Nutrition for Health and Performance)
View Full-Text   |   Download PDF [1993 KB, uploaded 5 August 2016]   |  

Abstract

New Zealand blackcurrant (NZBC) extract has been shown to enhance high-intensity intermittent treadmill running. We examined the effects of NZBC extract during the Loughborough Intermittent Shuttle Test (LIST) which involves 5 × 15 min blocks with intermittent 15-m maximal sprints, interspersed by moderate and high-intensity running to simulate team sport activity, and a subsequent run to exhaustion. Thirteen males (age: 22 ± 1 year, V ˙ O 2 max : 50 ± 5 mL·kg−1·min−1) participated in three indoor sessions (T: 24 ± 3 °C, humidity: 52% ± 9%). In the first session, a multistage fitness test was completed to determine peak running speed and estimate V ˙ O 2 max . Participants consumed NZBC extract in capsules (300 mg·day−1 CurraNZ™) or placebo (PL) (300 mg·day−1 microcrystalline cellulose M102) for seven days in a double-blind, randomized, cross-over design (wash-out at least seven days). NZBC extract did not affect average 15-m sprint times in each block. NZBC reduced slowing of the fastest sprint between block 1 and 5 (PL: 0.12 ± 0.07 s; NZBC: 0.06 ± 0.12 s; p < 0.05). NZBC extract had no effect on heart rate, vertical jump power, lactate and time to exhaustion (PL: 13.44 ± 8.09 min, NZBC: 15.78 ± 9.40 min, p > 0.05). However, eight participants had higher running times to exhaustion when consuming NZBC extract. New Zealand blackcurrant extract may enhance performance in team sports with repeated maximal sprints. View Full-Text
Keywords: sports nutrition; sprinting; football; anthocyanin; polyphenols; fatigue; running performance sports nutrition; sprinting; football; anthocyanin; polyphenols; fatigue; running performance
Figures

Figure 1

This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited. (CC BY 4.0).

Scifeed alert for new publications

Never miss any articles matching your research from any publisher
  • Get alerts for new papers matching your research
  • Find out the new papers from selected authors
  • Updated daily for 49'000+ journals and 6000+ publishers
  • Define your Scifeed now

SciFeed Share & Cite This Article

MDPI and ACS Style

Willems, M.E.; Cousins, L.; Williams, D.; Blacker, S.D. Beneficial Effects of New Zealand Blackcurrant Extract on Maximal Sprint Speed during the Loughborough Intermittent Shuttle Test. Sports 2016, 4, 42.

Show more citation formats Show less citations formats

Note that from the first issue of 2016, MDPI journals use article numbers instead of page numbers. See further details here.

Related Articles

Article Metrics

Article Access Statistics

1

Comments

[Return to top]
Sports EISSN 2075-4663 Published by MDPI AG, Basel, Switzerland RSS E-Mail Table of Contents Alert
Back to Top