The Effect of Kefir Supplementation on Improving Human Endurance Exercise Performance and Antifatigue.
The Effect of Kefir Supplementation on Improving Human Endurance Exercise Performance and Antifatigue.
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DOI：
10.3390/metabo11030136
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发表时间：
2021-02-25
期刊：
影响因子：
4.1
通讯作者：
Huang CC
中科院分区：
文献类型：
--
作者：
Lee MC;Jhang WL;Lee CC;Kan NW;Hsu YJ;Ho CS;Chang CH;Cheng YC;Lin JS;Huang CC
开菲尔是一种酸性、碳酸化和发酵乳制品，通过用开菲尔谷物发酵牛奶生产。乳杆菌属物种构成开菲尔谷物的重要组成部分。在之前的一项动物研究中，开菲尔有效地改善了运动表现，并具有抗疲劳作用。本研究的目的是探讨应用开菲尔改善运动表现，减少疲劳和改善人体生理适应性的益处。该试验采用双盲交叉设计，并补充28天。根据每个个体的初始最大摄氧量，将16名20-30岁的受试者以平衡的顺序分成两组，并分配每天早晨接受安慰剂（相同风味，相同卡路里，20 g/天）或SYNKEFIR™（20 g/天）。干预后，有28天的洗脱期，在此期间，受试者没有接受进一步的干预。补充SYNKEFIR™后，至力竭的运动时间显著大于摄入前（p = 0.0001），比安慰剂组高1.29倍（p = 0.0004）。此外，与安慰剂组相比，SYNKEFIR™给药组在运动和恢复中的乳酸水平显著较低（p < 0.05）。然而，在肠道微生物群的变化方面没有观察到显著差异。虽然没有发现身体成分的显著变化，但SYNKEFIR™没有对参与者的身体造成不良反应或伤害。总之，28天的SYNKEFIR™补充剂显著改善了运动表现，减少了运动后乳酸的产生，加速了恢复，同时也没有引起任何不良反应。
Kefir is an acidic, carbonated, and fermented dairy product produced by fermenting milk with kefir grains. The Lactobacillus species constitutes an important part of kefir grains. In a previous animal study, kefir effectively improved exercise performance and had anti-fatigue effects. The purpose of this research was to explore the benefits of applying kefir to improve exercise performance, reduce fatigue, and improve physiological adaptability in humans. The test used a double-blind crossover design and supplementation for 28 days. Sixteen 20–30 year-old subjects were divided into two groups in a balanced order according to each individual’s initial maximal oxygen uptake and were assigned to receive a placebo (equal flavor, equal calories, 20 g/day) or SYNKEFIR™ (20 g/day) every morning. After the intervention, there were 28 days of wash-out, during which time the subjects did not receive further interventions. After supplementation with SYNKEFIR™, the exercise time to exhaustion was significantly greater than that before ingestion (p = 0.0001) and higher than that in the Placebo group by 1.29-fold (p = 0.0004). In addition, compared with the Placebo group, the SYNKEFIR™ administration group had significantly lower lactate levels in the exercise and recovery (p < 0.05). However, no significant difference was observed in the changes in the gut microbiota. Although no significant changes in body composition were found, SYNKEFIR™ did not cause adverse reactions or harm to the participants’ bodies. In summary, 28 days of supplementation with SYNKEFIR™ significantly improved exercise performance, reduced the production of lactic acid after exercise, and accelerated recovery while also not causing any adverse reactions.
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影响因子：
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