No Effects of New Zealand Blackcurrant Extract on Physiological and Performance Responses in Trained Male Cyclists Undertaking Repeated Testing across a Week Period
Anthocyanin supplements are receiving attention due to purported benefits to physiological, metabolic, and exercise responses in trained individuals. However, the efficacy of anthocyanin intake over multiple testing days is not known. We compared a placebo and two doses of anthocyanin-rich New Zeala...
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| Format: | Article |
| Language: | English |
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MDPI AG
2020-08-01
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| Series: | Sports |
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| Online Access: | https://www.mdpi.com/2075-4663/8/8/114 |
| _version_ | 1797558300068282368 |
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| author | Stefano Montanari Mehmet A. Şahin Ben J. Lee Sam D. Blacker Mark E.T. Willems |
| author_facet | Stefano Montanari Mehmet A. Şahin Ben J. Lee Sam D. Blacker Mark E.T. Willems |
| author_sort | Stefano Montanari |
| collection | DOAJ |
| description | Anthocyanin supplements are receiving attention due to purported benefits to physiological, metabolic, and exercise responses in trained individuals. However, the efficacy of anthocyanin intake over multiple testing days is not known. We compared a placebo and two doses of anthocyanin-rich New Zealand blackcurrant (NZBC) extract (300 and 600 mg·day<sup>−1</sup>) on plasma lactate, substrate oxidation, and 16.1 km time trial (TT) performance on three occasions over 7-days in a fed state (day 1 (D1), D4, and D7). Thirteen male cyclists participated in a randomized, crossover, placebo-controlled double-blind design. There was no difference in plasma lactate and substrate oxidation between conditions and between days. A time difference was observed between D1 (1701 ± 163 s) and D4 (1682 ± 162 s) for 600 mg (<i>p</i> = 0.05), with an increment in average speed (D1 = 34.3 ± 3.4 vs. D4 = 34.8 ± 3.4 km·h<sup>−1</sup>, <i>p</i> = 0.04). However, there was no difference between the other days and between conditions. Overall, one week of intake of NZBC extract did not affect physiological and metabolic responses. Intake of 600 mg of NZBC extract showed inconsistent benefits in improving 16.1 km time trial performance over a week period in trained fed cyclists. |
| first_indexed | 2024-03-10T17:29:36Z |
| format | Article |
| id | doaj.art-520a32d3dd4c4974905178ab658f2224 |
| institution | Directory Open Access Journal |
| issn | 2075-4663 |
| language | English |
| last_indexed | 2024-03-10T17:29:36Z |
| publishDate | 2020-08-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Sports |
| spelling | doaj.art-520a32d3dd4c4974905178ab658f22242023-11-20T10:04:31ZengMDPI AGSports2075-46632020-08-018811410.3390/sports8080114No Effects of New Zealand Blackcurrant Extract on Physiological and Performance Responses in Trained Male Cyclists Undertaking Repeated Testing across a Week PeriodStefano Montanari0Mehmet A. Şahin1Ben J. Lee2Sam D. Blacker3Mark E.T. Willems4Institute of Sport, University of Chichester, College Lane, Chichester PO19 6PE, UKInstitute of Sport, University of Chichester, College Lane, Chichester PO19 6PE, UKInstitute of Sport, University of Chichester, College Lane, Chichester PO19 6PE, UKInstitute of Sport, University of Chichester, College Lane, Chichester PO19 6PE, UKInstitute of Sport, University of Chichester, College Lane, Chichester PO19 6PE, UKAnthocyanin supplements are receiving attention due to purported benefits to physiological, metabolic, and exercise responses in trained individuals. However, the efficacy of anthocyanin intake over multiple testing days is not known. We compared a placebo and two doses of anthocyanin-rich New Zealand blackcurrant (NZBC) extract (300 and 600 mg·day<sup>−1</sup>) on plasma lactate, substrate oxidation, and 16.1 km time trial (TT) performance on three occasions over 7-days in a fed state (day 1 (D1), D4, and D7). Thirteen male cyclists participated in a randomized, crossover, placebo-controlled double-blind design. There was no difference in plasma lactate and substrate oxidation between conditions and between days. A time difference was observed between D1 (1701 ± 163 s) and D4 (1682 ± 162 s) for 600 mg (<i>p</i> = 0.05), with an increment in average speed (D1 = 34.3 ± 3.4 vs. D4 = 34.8 ± 3.4 km·h<sup>−1</sup>, <i>p</i> = 0.04). However, there was no difference between the other days and between conditions. Overall, one week of intake of NZBC extract did not affect physiological and metabolic responses. Intake of 600 mg of NZBC extract showed inconsistent benefits in improving 16.1 km time trial performance over a week period in trained fed cyclists.https://www.mdpi.com/2075-4663/8/8/114sports nutritionanthocyaninssubstrate oxidationlactatecycling performancerepeated tests |
| spellingShingle | Stefano Montanari Mehmet A. Şahin Ben J. Lee Sam D. Blacker Mark E.T. Willems No Effects of New Zealand Blackcurrant Extract on Physiological and Performance Responses in Trained Male Cyclists Undertaking Repeated Testing across a Week Period Sports sports nutrition anthocyanins substrate oxidation lactate cycling performance repeated tests |
| title | No Effects of New Zealand Blackcurrant Extract on Physiological and Performance Responses in Trained Male Cyclists Undertaking Repeated Testing across a Week Period |
| title_full | No Effects of New Zealand Blackcurrant Extract on Physiological and Performance Responses in Trained Male Cyclists Undertaking Repeated Testing across a Week Period |
| title_fullStr | No Effects of New Zealand Blackcurrant Extract on Physiological and Performance Responses in Trained Male Cyclists Undertaking Repeated Testing across a Week Period |
| title_full_unstemmed | No Effects of New Zealand Blackcurrant Extract on Physiological and Performance Responses in Trained Male Cyclists Undertaking Repeated Testing across a Week Period |
| title_short | No Effects of New Zealand Blackcurrant Extract on Physiological and Performance Responses in Trained Male Cyclists Undertaking Repeated Testing across a Week Period |
| title_sort | no effects of new zealand blackcurrant extract on physiological and performance responses in trained male cyclists undertaking repeated testing across a week period |
| topic | sports nutrition anthocyanins substrate oxidation lactate cycling performance repeated tests |
| url | https://www.mdpi.com/2075-4663/8/8/114 |
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