PDF(Pubmed)
Abstract：
Anaerobic exercise decreases systemic pH and increases metabolic acidosis in athletes, altering the acid-base homeostasis. In addition, nutritional recommendations advising athletes to intake higher amounts of proteins and simple carbohydrates (including from sport functional supplements) could be detrimental to restoring acid-base balance. Here, this specific nutrition could be classified as an acidic diet and defined as \'Westernized athletic nutrition\'. The maintenance of a chronic physiological state of low-grade metabolic acidosis produces detrimental effects on systemic health, physical performance, and inflammation. Therefore, nutrition must be capable of compensating for systemic acidosis from anaerobic exercise. The healthy gut microbiota can contribute to improving health and physical performance in athletes and, specifically, decrease the systemic acidic load through the conversion of lactate from systemic circulation to short-chain fatty acids in the proximal colon. On the contrary, microbial dysbiosis results in negative consequences for host health and physical performance because it results in a greater accumulation of systemic lactate, hydrogen ions, carbon dioxide, bacterial endotoxins, bioamines, and immunogenic compounds that are transported through the epithelia into the blood circulation. In conclusion, the systemic metabolic acidosis resulting from anaerobic exercise can be aggravated through an acidic diet, promoting chronic, low-grade metabolic acidosis in athletes. The individuality of athletic training and nutrition must take into consideration the acid-base homeostasis to modulate microbiota and adaptive physiological responses.
摘要：
无氧运动降低全身pH值，增加运动员的代谢性酸中毒，改变酸碱稳态。此外,建议运动员摄入更多的蛋白质和简单碳水化合物(包括运动功能补充剂)的营养建议可能不利于恢复酸碱平衡.这里,这种特定的营养可以归类为酸性饮食，并定义为“西化运动营养”。维持低度代谢性酸中毒的慢性生理状态会对全身健康产生有害影响，物理性能，和炎症。因此,营养必须能够补偿无氧运动引起的全身性酸中毒。健康的肠道微生物群有助于改善运动员的健康和身体表现，具体来说,通过将乳酸盐从体循环转化为近端结肠中的短链脂肪酸来降低全身酸性负荷。相反,微生物菌群失调导致对宿主健康和身体表现的负面影响，因为它导致更多的系统性乳酸积累，氢离子,二氧化碳,细菌内毒素,生物胺，和通过上皮转运到血液循环中的免疫原性化合物。总之,无氧运动引起的全身性代谢性酸中毒可以通过酸性饮食加重，促进慢性，运动员低度代谢性酸中毒。运动训练和营养的个性必须考虑酸碱稳态以调节微生物群和适应性生理反应。
