Trial reportEuropean journal of applied physiology2020
Effects of New Zealand blackcurrant extract on sport climbing performance.
Trial report in European journal of applied physiology, 2020. The graph could read no effect estimate from its abstract, so it casts no vote on the map. An erratum has been issued. Cited by 22 papers, 2 of them syntheses that pooled 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.
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.
Who cites it
22 citing papers in PubMed, 2 syntheses or guidelines pooled it, 33 citations in OpenAlex.
- Effect of food sources of nitrate, polyphenols, L-arginine and L-citrulline on endurance exercise performance: a systematic review and meta-analysis of randomised controlled trials.Journal of the International Society of Sports Nutrition · 2021Pooled it
- Pooled it
- New Zealand blackcurrant extract has no effect on physiological and cardiovascular responses during low-intensity sustained intermittent isometric contractions in men.European journal of applied physiology · 2026Trial
- Trial
- Beta-Alanine Supplementation and Sport Climbing Performance.International journal of environmental research and public health · 2021Trial
- International Society of Sports Nutrition position stand: effects of dietary antioxidants on exercise and sports performance.Journal of the International Society of Sports Nutrition · 2026Review
- Effect of New Zealand Blackcurrant Supplementation on Sports Performance: A Systematic Review.Current developments in nutrition · 2026Review
- (Poly)phenols: Mechanisms of action and efficacy of contemporary supplements for exercise recovery and performance.Experimental physiology · 2026Review
- Anthocyanin-Rich Blackcurrant Supplementation as a Nutraceutical Ergogenic Aid for Exercise Performance and Recovery: A Narrative Review.Current developments in nutrition · 2025Article
- The Influence of Berry-Derived Polyphenol Supplementation on Exercise-Induced Oxidative Stress and Cardiovascular Health in Physically Active Individuals.Antioxidants (Basel, Switzerland) · 2024Review
- Review
- Physical performance testing in climbing-A systematic review.Frontiers in sports and active living · 2023Review
- Nutrition knowledge, weight loss practices, and supplement use in senior competition climbers.Frontiers in nutrition · 2023Article
- Effects of New Zealand Blackcurrant Extract on Sequential Performance Testing in Male Rugby Union Players.Sports (Basel, Switzerland) · 2022Article
- Effect of New Zealand Blackcurrant Extract on Force Steadiness of the Quadriceps Femoris Muscle during Sustained Submaximal Isometric Contraction.Journal of functional morphology and kinesiology · 2022Article
- Visual Perception in Expert Athletes: The Case of Rock Climbers.Frontiers in psychology · 2022Article
- Correction to: The effect of New Zealand blackcurrant on sport performance and related biomarkers: a systematic review and meta-analysis.Journal of the International Society of Sports Nutrition · 2021Article
- Enhancement of Biological Properties of Blackcurrants by Lactic Acid Fermentation and Incorporation into Yogurt: A Review.Antioxidants (Basel, Switzerland) · 2020Review
- Effect of New Zealand Blackcurrant Extract on Isometric Contraction-Induced Fatigue and Recovery: Potential Muscle-Fiber Specific Effects.Sports (Basel, Switzerland) · 2020Article
- Response to letter to the editor: On the climbing performance enhancing effects of New Zealand blackcurrant extract.European journal of applied physiology · 2020Article
Corrections and comments
- Commented on by
- Erratum issued
Authors and funding
7 authors at 1 institution in 1 country.
Funding
No grant is acknowledged in the PubMed record.
Abstract
purposeBlood flow to skeletal muscles and removal of metabolic by-products during a sport climb are essential to optimise performance and recovery. New Zealand blackcurrant (NZBC) extract has enhanced blood flow and performance in other exercise modalities. We examined the effect of NZBC extract on sport climbing performance and recovery.
methodsThe study employed a double-blind, randomised, crossover design. Male sport climbers (n = 18, age 24 ± 6 years, height 179 ± 6 cm, mass 71.4 ± 7.8 kg, French grade 6a-8b) undertook 7 days supplementation of NZBC extract (600 mg day
resultsNZBC extract had no effect on pull-ups but provided a trend for higher HT and significantly improved TCT (+23%) compared to PL (-11%) over three climbs. HR, BL, FG and HGS all indicated that 20 min was insufficient for physiological recovery between the three climbing bouts indicating accumulative fatigue regardless of supplement condition.
conclusionDespite indices of progressive fatigue across three bouts of climbing, NZBC extract facilitated not only a maintenance of TCT but an improved climbing endurance as compared with the PL condition. Blackcurrant anthocyanin-derived metabolites seem to affect physiological responses that facilitate sport climbing performance.
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Registered trials
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.