Randomised clinical trial of rice germ supplementation on nutritional status and performance in trained swimmers: A pilot study

Nichetti Mara, . and Perna Simone, . and Peroni Gabriella, . and Gasparri Clara, . and Rondanelli Mariangela, . and Iannello Giancarlo, . and Infantino Vittoria, . and Guido Davide, . and Spadaccini Daniele, . and Faliva Milena A., . Randomised clinical trial of rice germ supplementation on nutritional status and performance in trained swimmers: A pilot study. pp. 215-228. ISSN 1394-035X

Introduction: Rice germ (RG) could be a safe and effective dietary supplement for swimmers. Methods: This randomised parallel placebo controlled pilot study investigated the effect of a five-week RG supplementation (25 grams/two times/day) in moderately trained swimmers on 50-m and 200-m front crawl at maximal speed as primary outcome and body composition muscle function post-concussion assessment cognitive testing (ImPACT) and lactic acid levels as secondary outcomes. Twenty seven moderately trained swimmers (7 women and 20 men) participated in the study. Results: For primary outcome on 200-m front crawl at maximal speed a significant average decrease of 2.98 seconds (p0.022) was detected in RG group but it was not significant compared to placebo. On 50-m front crawl at maximal speed no statistically significant intra- or inter-group differences were detected. Regarding secondary outcomes no difference was demonstrated between preperformance and post-performance lactic acid levels. Comparing the treatment with placebo across follow-up mean mid-arm muscle circumference (MAC) increased weekly and significantly by 0.23 cm (p0.026) as well as 0.36 for gynoid fat (p0.005). In addition a decrease of 0.13kg in fat-free mass (p0.067) was also detected. No statistically significant intra- or inter-group differences were detected for secondary outcomes. Conclusion: This pilot study provided early evidence that RG supplementation may positively affect nutritional status and partially the performance of moderately trained swimmers. Further research is needed to clarify the mechanisms of action the optimal timing of supplementation as well as the most effective dose.

Full text available from: Official URL: https://nutriweb.org.my/mjn/publication/26-2/Vol%2...

Abstract

Introduction: Rice germ (RG) could be a safe and effective dietary supplement for swimmers. Methods: This randomised parallel placebo controlled pilot study investigated the effect of a five-week RG supplementation (25 grams/two times/day) in moderately trained swimmers on 50-m and 200-m front crawl at maximal speed as primary outcome and body composition muscle function post-concussion assessment cognitive testing (ImPACT) and lactic acid levels as secondary outcomes. Twenty seven moderately trained swimmers (7 women and 20 men) participated in the study. Results: For primary outcome on 200-m front crawl at maximal speed a significant average decrease of 2.98 seconds (p0.022) was detected in RG group but it was not significant compared to placebo. On 50-m front crawl at maximal speed no statistically significant intra- or inter-group differences were detected. Regarding secondary outcomes no difference was demonstrated between preperformance and post-performance lactic acid levels. Comparing the treatment with placebo across follow-up mean mid-arm muscle circumference (MAC) increased weekly and significantly by 0.23 cm (p0.026) as well as 0.36 for gynoid fat (p0.005). In addition a decrease of 0.13kg in fat-free mass (p0.067) was also detected. No statistically significant intra- or inter-group differences were detected for secondary outcomes. Conclusion: This pilot study provided early evidence that RG supplementation may positively affect nutritional status and partially the performance of moderately trained swimmers. Further research is needed to clarify the mechanisms of action the optimal timing of supplementation as well as the most effective dose.

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Item Type:	Article
AGROVOC Term:	Rice
AGROVOC Term:	Nutritional supplements
AGROVOC Term:	Lactic acid
AGROVOC Term:	Dietary components
AGROVOC Term:	Nutritional status
AGROVOC Term:	Sampling
AGROVOC Term:	Nutrient requirements
Depositing User:	Mr. AFANDI ABDUL MALEK
Last Modified:	24 Apr 2025 00:54
URI:	http://webagris.upm.edu.my/id/eprint/9113

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