Cargando…

Effect of New Zealand Blackcurrant Extract on Repeated Cycling Time Trial Performance

New Zealand blackcurrant (NZBC) extract increased 16.1 km cycling time trial performance. The aim of the present study was to examine the effect of NZBC extract on 2 × 4 km time trial performance. Ten male cyclists (age: 30 ± 12 years, body mass: 74 ± 9 kg, height: 179 ± 7 cm, body fat: 11 ± 3%, [Fo...

Descripción completa

Detalles Bibliográficos
Autores principales: Murphy, Connor A., Cook, Matthew D., Willems, Mark E.T.
Formato: Online Artículo Texto
Lenguaje:English
Publicado: MDPI 2017
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC5968979/
https://www.ncbi.nlm.nih.gov/pubmed/29910385
http://dx.doi.org/10.3390/sports5020025
_version_ 1783325881704382464
author Murphy, Connor A.
Cook, Matthew D.
Willems, Mark E.T.
author_facet Murphy, Connor A.
Cook, Matthew D.
Willems, Mark E.T.
author_sort Murphy, Connor A.
collection PubMed
description New Zealand blackcurrant (NZBC) extract increased 16.1 km cycling time trial performance. The aim of the present study was to examine the effect of NZBC extract on 2 × 4 km time trial performance. Ten male cyclists (age: 30 ± 12 years, body mass: 74 ± 9 kg, height: 179 ± 7 cm, body fat: 11 ± 3%, [Formula: see text] O(2max): 55 ± 7 mL·kg(−1)·min(−1), mean ± SD) volunteered. Participants were familiarized with the time trials. Participants consumed capsulated NZBC extract (300 mg·day(−1) CurraNZ™; containing 105 mg anthocyanin) or placebo for seven days (double blind, randomised, cross-over design, wash-out at least seven days) before 2 × 4 km time trials (10 min active self-paced recovery between trials) (SRM ergometer, SRM International, Germany). Heart rate was recorded and blood lactate sampled immediately after each trial and 8 min into recovery between the trials. Times over comparable one km distances in each 4 km time trial were similar. No effect was observed for the time to complete the first (placebo: 380 ± 28 s, NZBC: 377 ± 27 s) and second 4 km of cycling (placebo: 391 ± 32 s, NZBC: 387 ± 30 s), within both groups the second 4 km times slower by 11 ± 8 s and 11 ± 9 s for placebo and NZBC, respectively. However, the total time of the two 4 km cycling trials was 0.82% faster with NZBC extract (placebo: 771 ± 60 s, NZBC 764 ± 56 s, p = 0.034) with seven participants having faster total times. There was no effect of NZBC on heart rate and lactate values at identical time points. New Zealand blackcurrant extract seems to be beneficial in repeated short-distance cycling time trials for overall performance.
format Online
Article
Text
id pubmed-5968979
institution National Center for Biotechnology Information
language English
publishDate 2017
publisher MDPI
record_format MEDLINE/PubMed
spelling pubmed-59689792018-06-13 Effect of New Zealand Blackcurrant Extract on Repeated Cycling Time Trial Performance Murphy, Connor A. Cook, Matthew D. Willems, Mark E.T. Sports (Basel) Article New Zealand blackcurrant (NZBC) extract increased 16.1 km cycling time trial performance. The aim of the present study was to examine the effect of NZBC extract on 2 × 4 km time trial performance. Ten male cyclists (age: 30 ± 12 years, body mass: 74 ± 9 kg, height: 179 ± 7 cm, body fat: 11 ± 3%, [Formula: see text] O(2max): 55 ± 7 mL·kg(−1)·min(−1), mean ± SD) volunteered. Participants were familiarized with the time trials. Participants consumed capsulated NZBC extract (300 mg·day(−1) CurraNZ™; containing 105 mg anthocyanin) or placebo for seven days (double blind, randomised, cross-over design, wash-out at least seven days) before 2 × 4 km time trials (10 min active self-paced recovery between trials) (SRM ergometer, SRM International, Germany). Heart rate was recorded and blood lactate sampled immediately after each trial and 8 min into recovery between the trials. Times over comparable one km distances in each 4 km time trial were similar. No effect was observed for the time to complete the first (placebo: 380 ± 28 s, NZBC: 377 ± 27 s) and second 4 km of cycling (placebo: 391 ± 32 s, NZBC: 387 ± 30 s), within both groups the second 4 km times slower by 11 ± 8 s and 11 ± 9 s for placebo and NZBC, respectively. However, the total time of the two 4 km cycling trials was 0.82% faster with NZBC extract (placebo: 771 ± 60 s, NZBC 764 ± 56 s, p = 0.034) with seven participants having faster total times. There was no effect of NZBC on heart rate and lactate values at identical time points. New Zealand blackcurrant extract seems to be beneficial in repeated short-distance cycling time trials for overall performance. MDPI 2017-05-09 /pmc/articles/PMC5968979/ /pubmed/29910385 http://dx.doi.org/10.3390/sports5020025 Text en © 2017 by the authors. Licensee MDPI, Basel, Switzerland. This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution (CC BY) license (http://creativecommons.org/licenses/by/4.0/).
spellingShingle Article
Murphy, Connor A.
Cook, Matthew D.
Willems, Mark E.T.
Effect of New Zealand Blackcurrant Extract on Repeated Cycling Time Trial Performance
title Effect of New Zealand Blackcurrant Extract on Repeated Cycling Time Trial Performance
title_full Effect of New Zealand Blackcurrant Extract on Repeated Cycling Time Trial Performance
title_fullStr Effect of New Zealand Blackcurrant Extract on Repeated Cycling Time Trial Performance
title_full_unstemmed Effect of New Zealand Blackcurrant Extract on Repeated Cycling Time Trial Performance
title_short Effect of New Zealand Blackcurrant Extract on Repeated Cycling Time Trial Performance
title_sort effect of new zealand blackcurrant extract on repeated cycling time trial performance
topic Article
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC5968979/
https://www.ncbi.nlm.nih.gov/pubmed/29910385
http://dx.doi.org/10.3390/sports5020025
work_keys_str_mv AT murphyconnora effectofnewzealandblackcurrantextractonrepeatedcyclingtimetrialperformance
AT cookmatthewd effectofnewzealandblackcurrantextractonrepeatedcyclingtimetrialperformance
AT willemsmarket effectofnewzealandblackcurrantextractonrepeatedcyclingtimetrialperformance