短链脂肪酸(short-chain fatty acids, SCFAs)是由肠道菌群通过发酵膳食纤维产生的,包括乙酸、丙酸和丁酸等。这些SCFAs调控人体多种生理功能,如调节免疫、代谢和神经系统功能等, 被认为是影响宿主健康的关键因素,SCFAs有助于促进乳酸代谢、增加糖原储存和改善肠道屏障,进而提升运动能力和表现。然而,不同种类的SCFAs在作用机制和效应上存在差异。本综述探讨了肠道菌群合成的SCFAs如何影响运动表现及其作用机制,为肠道菌群来源的SCFAs用于改善 运动表现提供新的思路和方向。

Short-chain fatty acids (SCFAs) are produced by the gut microbiota through the fermentation of dietary fibers, which include acetic acid, propionic acid, and butyric acid. These SCFAs regulate various physiological functions in the body, such as immune, metabolic, and neurological functions, and are considered key factors affecting host health. SCFAs contribute to promoting lactate metabolism, increasing glycogen storage, and improving intestinal barrier function, thereby enhancing exercise performance. However, different types of SCFAs exhibit variations in their mechanisms of action and effects. This review discusses how SCFAs synthesized by the gut microbiota influence exercise performance and the underlying mechanisms, providing new insights and directions for the use of SCFAs derived from the gut microbiota to improve exercise performance.