دورية أكاديمية
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One-Week High-Dose β-Alanine Loading Improves World Tour Cyclists' Time-Trial Performance.

التفاصيل البيبلوغرافية
العنوان: One-Week High-Dose β-Alanine Loading Improves World Tour Cyclists' Time-Trial Performance.
المؤلفون: Ávila-Gandía V; Sports Physiology Department, Faculty of Health Sciences, UCAM Universidad Católica San Antonio de Murcia, 30107 Murcia, Spain., Torregrosa-García A; Sports Physiology Department, Faculty of Health Sciences, UCAM Universidad Católica San Antonio de Murcia, 30107 Murcia, Spain., Pérez-Piñero S; Sports Physiology Department, Faculty of Health Sciences, UCAM Universidad Católica San Antonio de Murcia, 30107 Murcia, Spain., Ortolano R; Sports Physiology Department, Faculty of Health Sciences, UCAM Universidad Católica San Antonio de Murcia, 30107 Murcia, Spain., Abellán-Ruiz MS; Sports Physiology Department, Faculty of Health Sciences, UCAM Universidad Católica San Antonio de Murcia, 30107 Murcia, Spain., López-Román FJ; Sports Physiology Department, Faculty of Health Sciences, UCAM Universidad Católica San Antonio de Murcia, 30107 Murcia, Spain.; Primary Care Research Group, Biomedical Research Institute of Murcia (IMIB-Arrixaca), 30120 Murcia, Spain.
المصدر: Nutrients [Nutrients] 2021 Jul 25; Vol. 13 (8). Date of Electronic Publication: 2021 Jul 25.
نوع المنشور: Journal Article; Randomized Controlled Trial
اللغة: English
بيانات الدورية: Publisher: MDPI Publishing Country of Publication: Switzerland NLM ID: 101521595 Publication Model: Electronic Cited Medium: Internet ISSN: 2072-6643 (Electronic) Linking ISSN: 20726643 NLM ISO Abbreviation: Nutrients Subsets: MEDLINE
أسماء مطبوعة: Original Publication: Basel, Switzerland : MDPI Publishing
مواضيع طبية MeSH: Dietary Supplements*, Athletic Performance/*physiology , Bicycling/*physiology , beta-Alanine/*administration & dosage, Adult ; Double-Blind Method ; Humans ; Male ; Powders ; Young Adult
مستخلص: Supplementation with β-alanine is becoming a common practice in high-performance athletes. The purpose of the present study was to investigate the effects of a one-week high-dose β-alanine loading phase employing a sustained-release powder on preserving the time-trial performance capacity of world tour cyclists during overreaching training. Per day, 20 g of sustained-release β-alanine was administered during one week (7 days) of intensive team training camp in a randomised balanced placebo-controlled parallel trial design, with six participants in each β-alanine (BA) or placebo (PLA) group. A 10-min time trial (10' TT) was carried out to analyse performance and biochemical variables. Anthropometry, paresthesia, and adverse event data were also collected. Power-based relative training load was quantified. Compared to placebo, the BA improved mean power (6.21%, 37.23 W; 95% CI: 3.98-70.48 W, p = 0.046), distance travelled (2.16%, p = 0.046) and total work (4.85%, p = 0.046) without differences in cadence ( p = 0.506) or RPE. Lactate ( p = 0.036) and anion gap ( p = 0.047) were also higher in the BA group, without differences in pH or Bicarbonate. High daily and single doses were well tolerated. One-week high-dose β-alanine loading with a sustained-release powder blend can help attenuate 10' TT performance losses of world tour cyclists due to intensive training.
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فهرسة مساهمة: Keywords: ergogenic aid; sustained-release; time-trial; world tour cyclists; β-alanine
المشرفين على المادة: 0 (Powders)
11P2JDE17B (beta-Alanine)
تواريخ الأحداث: Date Created: 20210827 Date Completed: 20210915 Latest Revision: 20210915
رمز التحديث: 20240829
مُعرف محوري في PubMed: PMC8401416
DOI: 10.3390/nu13082543
PMID: 34444703
قاعدة البيانات: MEDLINE
الوصف
تدمد:2072-6643
DOI:10.3390/nu13082543