Teixeira Filipe J, Matias Catarina N, Faleiro João, Giro Rita, Pires Joana, Figueiredo Helena, Carvalhinho Raquel, Monteiro Cristina P, Reis Joana F, Valamatos Maria J, Teixeira Vítor H, Schoenfeld Brad J
Bettery Lifelab, Bettery S.A., Lisboa, Portugal.
Atlântica, Instituto Universitário, Fábrica da Pólvora de Barcarena, Barcarena, Portugal.
Front Nutr. 2022 Jul 19;9:934438. doi: 10.3389/fnut.2022.934438. eCollection 2022.
The effects of dietary protein on body composition and physical performance seemingly depend on the essential amino acid profile of the given protein source, although controversy exists about whether animal protein sources may possess additional anabolic properties to plant-based protein sources.
To compare the effects of a novel plant-based protein matrix and whey protein supplementation on body composition, strength, power, and endurance performance of trained futsal players.
Fifty male futsal players were followed during 8 weeks of supplementation, with 40 completing the study either with plant-based protein ( = 20) or whey protein ( = 20). The following measures were assessed: bone mineral content, lean body mass, and fat mass; muscle thickness of the rectus femoris; total body water; blood glucose, hematocrit, C-reactive protein, aspartate aminotransferase, alanine aminotransferase, creatine kinase, creatinine, and estimated glomerular filtration rate; salivary cortisol; maximal strength and 1-RM testing of the back squat and bench press exercises; muscle power and countermovement jump; VO and maximal aerobic speed. Subjects were asked to maintain regular dietary habits and record dietary intake every 4 weeks through 3-day food records.
No differences in any variable were observed between groups at baseline or pre- to post-intervention. Moreover, no timegroup interaction was observed in any of the studied variables, and a time effect was only observed regarding fat mass reduction.
Supplementing with either a novel plant-based protein matrix or whey protein did not affect any of the variables assessed in high-level futsal players over 8 wks. These results suggest that whey protein does not possess any unique anabolic properties over and above those of plant-based proteins when equated to an essential amino acid profile in the population studied. Furthermore, when consuming a daily protein intake >1.6 g/kg BW.day, additional protein supplementation does not affect body composition or performance in trained futsal players, regardless of protein type/source.
膳食蛋白质对身体成分和身体机能的影响似乎取决于特定蛋白质来源的必需氨基酸组成，尽管对于动物蛋白来源是否可能比植物性蛋白来源具有额外的合成代谢特性存在争议。
比较一种新型植物性蛋白质基质和乳清蛋白补充剂对训练有素的室内五人制足球运动员的身体成分、力量、功率和耐力表现的影响。
50名男性室内五人制足球运动员在8周的补充期内接受跟踪，其中40人完成了研究，20人补充植物性蛋白质，20人补充乳清蛋白。评估了以下指标：骨矿物质含量、瘦体重和脂肪量；股直肌的肌肉厚度；全身水含量；血糖、血细胞比容、C反应蛋白、天冬氨酸转氨酶、丙氨酸转氨酶、肌酸激酶、肌酐和估算肾小球滤过率；唾液皮质醇；深蹲和卧推练习的最大力量和1次重复最大重量测试；肌肉功率和反向移动跳；VO₂和最大有氧速度。受试者被要求保持规律的饮食习惯，并通过3天的饮食记录每4周记录一次饮食摄入量。
在基线或干预前至干预后，两组之间在任何变量上均未观察到差异。此外，在任何研究变量中均未观察到时间-组间交互作用，仅在脂肪量减少方面观察到时间效应。
在8周内，补充新型植物性蛋白质基质或乳清蛋白对高水平室内五人制足球运动员评估的任何变量均无影响。这些结果表明，在所研究的人群中，当乳清蛋白与植物性蛋白的必需氨基酸组成相当时，乳清蛋白并不具有比植物性蛋白独特的合成代谢特性。此外，当每日蛋白质摄入量>1.6 g/kg体重·天时，额外补充蛋白质对训练有素的室内五人制足球运动员的身体成分或表现没有影响，无论蛋白质类型/来源如何。
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