Yarahmadi Masoome, Askari Gholamreza, Kargarfard Mehdi, Ghiasvand Reza, Hoseini Mohsen, Mohamadi Hajar, Asadi Ali
Food Security Research Center, Isfahan University of Medical Sciences, Isfahan, Iran.
Department of Community Nutrition, School of Nutrition and Food Sciences, Isfahan University of Medical Sciences, Isfahan, Iran.
Int J Prev Med. 2014 Dec;5(12):1594-600.
Flavonoids consider as a large group of plant metabolites that 6,000 types of them have been identified till now. In some studies, it has been shown that they can increase aerobic performance and maximal oxygen consumption (VO2 max). The aim of this study was to evaluate the effect of anthocyanin (as one of the most important kind of flavonoids) supplementation on body composition, exercise performance and muscle damage indices in athletes.
This double-blinded clinical trial involved 54 female and male athletes at Isfahan University of Medical Sciences with athletic history of at least 3 years. Body composition, exercise performance, creatine kinase, and lactate dehydrogenase were assessed. Individuals were selected by simple sampling method, they divided into two groups using permuted block randomization method. First group received 100 mg anthocyanin pills, and the second group received 100 mg placebo pills, daily for 6 weeks. Participants asked to continue their routine diet and physical activity during the study period, and they were followed through phone calls or text messages.
Soft lean mass, total body water and percent body fat were not changed significantly in the anthocyanin group after intervention but VO2 max increased significantly in the anthocyanin group (48.65 ± 4.73 vs. 52.62 ± 5.04) (P ≤ 0.0001), also a significant difference was observed between two studied groups (52.62 ± 5.04 for intervention group vs. 49.61 ± 5.33 for placebo) (P = 0.003).
Our findings suggested that the supplementation with anthocyanin in athletes may improve some indices of performance such as VO2 max.
黄酮类化合物被认为是一大类植物代谢产物，目前已鉴定出6000种。一些研究表明，它们可以提高有氧运动能力和最大摄氧量（VO2 max）。本研究的目的是评估补充花青素（作为最重要的黄酮类化合物之一）对运动员身体成分、运动表现和肌肉损伤指标的影响。
这项双盲临床试验涉及54名来自伊斯法罕医科大学的男女运动员，他们至少有3年的运动史。评估了身体成分、运动表现、肌酸激酶和乳酸脱氢酶。通过简单抽样方法选择个体，使用置换区组随机化方法将他们分为两组。第一组每天服用100毫克花青素药丸，第二组每天服用100毫克安慰剂药丸，持续6周。参与者被要求在研究期间继续他们的常规饮食和体育活动，并通过电话或短信进行跟踪。
干预后花青素组的软瘦体重、总体水和体脂百分比没有显著变化，但花青素组的VO2 max显著增加（48.65±4.73 vs. 52.62±5.04）（P≤0.0001），两个研究组之间也观察到显著差异（干预组为52.62±5.04，安慰剂组为49.61±5.33）（P = 0.003）。
我们的研究结果表明，运动员补充花青素可能会改善一些运动表现指标，如VO2 max。
