Effect of betaine on cycling sprint power

  • Riana Czapla
  • Thomas Swensen
  • Stuart AS Craig
Open Access
Poster presentation


Placebo Betaine Peak Power Daily Consumption Untrained Subject 
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We examined the effect of betaine on cycling sprint performance.


Sixteen untrained subjects (7 females and 9 males) completed three sprint tests, each consisting of four 12 sec efforts against 5.5% of body weight as resistance; efforts were separated by 2.5 min of cycling at zero resistance. Test one established baseline; test two and three were preceded by daily consumption of 591 ml of a carbohydrate-electrolyte beverage as a placebo or a carbohydrate-electrolyte beverage containing 0.42% betaine. A double blind random order crossover design and a three-week washout between trials were used. Average and maximum peak and mean power were analyzed with one-way repeated measures ANOVA and, where indicated, a Student Newman–Keuls; α was set at 0.05.


Compared to baseline, betaine ingestion increased average peak power (6.4%, p < 0.001), max peak power (5.7%, p < 0.001), average mean power (5.4%, p = 0.004), and max mean power (4.4%, p = 0.004) for all subjects combined. Compared to placebo, betaine ingestion significantly increased average peak power (3.4%, p = 0.026), max peak power max (3.8%, p = 0.007), average mean power (3.3%, p = 0.034), and max mean power (3.5%, p = 0.011) for all subjects combined. There were no differences between the placebo and baseline trials.


One week of betaine ingestion improved cycling sprint power in untrained males and females.

Copyright information

© Czapla et al;licensee BioMed Central Ltd. 2010

Authors and Affiliations

  • Riana Czapla
    • 1
  • Thomas Swensen
    • 1
  • Stuart AS Craig
    • 2
  1. 1.Ithaca CollegeIthacaUSA
  2. 2.Danisco A/STarrytownUSA

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