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Article

Betaine Supplementation Does not Improve Muscle Hypertrophy or Strength Following 6 Weeks of Cross-Fit Training

1
Department of Biomedical Science, University of Padova, 35100 Padova, Italy
2
iF srl Faenza, 48100 Ravenna, Italy
*
Author to whom correspondence should be addressed.
Nutrients 2020, 12(6), 1688; https://doi.org/10.3390/nu12061688
Received: 24 April 2020 / Revised: 21 May 2020 / Accepted: 3 June 2020 / Published: 5 June 2020
(This article belongs to the Special Issue Nutrition Strategies for Improved Anaerobic Performance)
We aim to investigate the effect of 6 weeks of betaine supplementation on body composition and muscle performance during CrossFit© training. Twenty-nine subjects matched for training status (4.16 ± 0.95 day/week) and body fat mass (12.66 ± 4.08%) were randomly assigned to a betaine (BET; N = 14) or placebo group (PLA; N = 15). Body composition and cellular hydration were estimated with skinfolds measurement and bioelectrical impendence before and after 6 weeks of training. Muscle performance was assessed using three different tests: 3-RM back-squat for muscle strength, 2 km rowing test for aerobic capacity and Bergeron Beep Test for anaerobic capacity. Muscle strength assessed during back squat significantly increased in BET (p = 0.04) but not in the PLA group, however, there were no statistical differences between groups. Although not significant, fat mass was reduced in BET compared to PLA. Overall, body composition and cell hydration measurements did not change in response to training or betaine supplementation. Short-term (6 weeks) betaine supplementation supports muscle strength but was not ergogenic for trained subjects to aerobic and anaerobic performance in the CrossFit©-specific test. View Full-Text
Keywords: betaine; CrossFit©; strength; body composition betaine; CrossFit©; strength; body composition
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MDPI and ACS Style

Moro, T.; Badiali, F.; Fabbri, I.; Paoli, A. Betaine Supplementation Does not Improve Muscle Hypertrophy or Strength Following 6 Weeks of Cross-Fit Training. Nutrients 2020, 12, 1688. https://doi.org/10.3390/nu12061688

AMA Style

Moro T, Badiali F, Fabbri I, Paoli A. Betaine Supplementation Does not Improve Muscle Hypertrophy or Strength Following 6 Weeks of Cross-Fit Training. Nutrients. 2020; 12(6):1688. https://doi.org/10.3390/nu12061688

Chicago/Turabian Style

Moro, Tatiana, Francesca Badiali, Iader Fabbri, and Antonio Paoli. 2020. "Betaine Supplementation Does not Improve Muscle Hypertrophy or Strength Following 6 Weeks of Cross-Fit Training" Nutrients 12, no. 6: 1688. https://doi.org/10.3390/nu12061688

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