Abstract:
PURPOSE:To examine the effect of caffeine supplementation on dribbling speed in elite female and male basketball players. METHODS:A double-blind, counterbalanced, randomized, crossover design was utilized. Elite basketball players (n = 21; female, n = 10; male, n = 11; age = 18.3 ± 3.3 yr) completed placebo (3 mg·kg-1 of body mass of dextrose) and caffeine (3 mg·kg-1 of body mass) trials 1 week apart during the in-season phase. During each trial, players completed 20-m linear sprints with and without dribbling a basketball. Performance times were recorded at 5-m, 10-m, and 20-m splits. Dribbling speed was measured using traditional (total performance time) and novel (Dribble Deficit) methods. Dribble Deficit isolates the added time taken to complete a task when dribbling compared to a non-dribbling version of the same task. Comparisons between placebo and caffeine conditions were conducted at group and individual levels. RESULTS:Non-significant (P > 0.05), trivial-small (effect size = 0.04-0.42) differences in dribbling speed were observed between conditions. The majority (20 out of 21) of players were classified as non-responders to caffeine, with 1 player identified as a negative responder using Dribble Deficit measures. CONCLUSIONS:Results indicate caffeine offers no ergogenic benefit to dribbling speed in elite basketball players. The negative response to caffeine in one player indicates caffeine supplementation may be detrimental to dribbling speed in specific cases and emphasizes the need for individualized analyses in nutrition-based sport science research.
journal_name
Int J Sports Physiol Performauthors
Scanlan AT,Dalbo VJ,Conte D,Stojanović E,Stojiljković N,Stanković R,Antić V,Milanović Zdoi
10.1123/ijspp.2018-0871subject
Has Abstractpub_date
2019-07-01 00:00:00pages
997-1000issue
7eissn
1555-0265issn
1555-0273pii
ijspp.2018-0871journal_volume
14pub_type
杂志文章,随机对照试验abstract:UNLABELLED:Anthropometrical and physical characteristics have been used to distinguish players of different competition levels and position groups; however, there is no literature on rugby sevens. PURPOSE:To compare the anthropometrical and physical characteristics of international and provincial rugby sevens players ...
journal_title:International journal of sports physiology and performance
pub_type: 杂志文章
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journal_title:International journal of sports physiology and performance
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journal_title:International journal of sports physiology and performance
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pub_type: 杂志文章,随机对照试验
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