Evidence map›Paper›PMID 26175097›Full record

Trial reportEuropean journal of applied physiology2015

New Zealand blackcurrant extract improves cycling performance and fat oxidation in cyclists.

Matthew David Cook, Stephen David Myers, Sam David Blacker, Mark Elisabeth Theodorus Willems

Abstract readRandomized Controlled Trial
PubMed Publisher
In one paragraph

Trial report in European journal of applied physiology, 2015. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 76 papers, 6 of them syntheses that pooled it.

0numbers the graph read from it
0cells of the map it votes in
76citing papers in PubMed, 6 pooled it
13.6field-weighted citation impact, top 1% of its field
1 · What the graph read from it

What it found

Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.

The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.

2 · The registry

The trial behind it

Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.

Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.

3 · Its place in the literature

Who cites it

76 citing papers in PubMed, 6 syntheses or guidelines pooled it, 115 citations in OpenAlex.

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16 more citing papers are in PubMed but not listed here.

4 · The record

Corrections and comments

PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.

5 · Who and what money

Authors and funding

4 authors at 2 institutions in 1 country.

Matthew David CookDepartment of Sport & Exercise Sciences, University of Chichester, College Lane, Chichester, PO19 6PE, UK.
Stephen David MyersDepartment of Sport & Exercise Sciences, University of Chichester, College Lane, Chichester, PO19 6PE, UK.
Sam David BlackerDepartment of Sport & Exercise Sciences, University of Chichester, College Lane, Chichester, PO19 6PE, UK.
Mark Elisabeth Theodorus WillemsDepartment of Sport & Exercise Sciences, University of Chichester, College Lane, Chichester, PO19 6PE, UK. m.willems@chi.ac.uk.
Chichester College · GBUniversity of Chichester · GB

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

purposeBlackcurrant intake increases peripheral blood flow in humans, potentially by anthocyanin-induced vasodilation which may affect substrate delivery and exercise performance. We examined the effects of New Zealand blackcurrant (NZBC) extract on substrate oxidation, cycling time-trial performance and plasma lactate responses following the time-trial in trained cyclists.

methodsUsing a randomized, double-blind, crossover design, 14 healthy men (age: 38 ± 13 years, height: 178 ± 4 cm, body mass: 77 ± 9 kg, VO2max: 53 ± 6 mL kg(-1) min(-1), mean ± SD) ingested NZBC extract (300 mg day(-1) CurraNZ™ containing 105 mg anthocyanin) or placebo (PL, 300 mg microcrystalline cellulose M102) for 7 days (washout 14 days). On day 7, participants performed 30 min of cycling (3 × 10 min at 45, 55 and 65 % VO2max), followed by a 16.1 km time-trial with lactate sampling during a 20-min passive recovery.

resultsNZBC extract increased fat oxidation at 65 % VO2max by 27 % (P < 0.05) and improved 16.1 km time-trial performance by 2.4 % (NZBC: 1678 ± 108 s, PL: 1722 ± 131 s, P < 0.05). Plasma lactate was higher with NZBC extract immediately following the time-trial (NZBC: 7.06 ± 1.73 mmol L(-1), PL: 5.92 ± 1.58 mmol L(-1), P < 0.01).

conclusionsSeven-day intake of New Zealand blackcurrant extract improves 16.1 km cycling time-trial performance and increases fat oxidation during moderate intensity cycling.

Indexed as

RibesAdipose TissueAdultAthletesAthletic PerformanceBicyclingDouble-Blind MethodHumansLactic AcidLipid MetabolismMalePlant ExtractsLactic AcidPlant ExtractsAnthocyaninIndirect calorimetryLactateNew Zealand blackcurrantRecoverySports nutritionSubstrate oxidationTime-trial

Identifiers

PMID26175097
OpenAlexW1936970696

What OpenQuestion holds

Textmetadata
Read underepoch 390

Registered trials

None linked

Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.