Department of Biochemistry, CSIR-CFTRI, Mysuru, India.
Arch Physiol Biochem. 2022 Aug;128(4):851-858. doi: 10.1080/13813455.2020.1733025. Epub 2020 Mar 30.
Endurance refers to the ability of skeletal muscles to perform continuously withstanding the hardships of exercise. Endurance exercises have three phases: pre-, during-, and post-workout phase. The nutritional requirements that drive these phases vary on intensity, type of workout, individual's body composition, training, weather conditions, etc. Generally, the pre-workout phase requires glycogen synthesis and spare glycogen breakdown. While workout phase, requires rapid absorption of exogenous glucose, insulin release to transport glucose into muscle cells, replenish the loss of electrolytes, promote fluid retention, etc. However, post-workout phase requires quick amino acid absorption, muscle protein synthesis, repair of damaged muscle fibres and tendon, ameliorate inflammation, oxidative stress, etc. Therefore, nutritional sources that can help these metabolic requirements is recommended. In this review, various dietary interventions including timing and amount of nutrient consumption that can promote the above metabolic requirements that in turn support in improving the endurance potential in athletes are discussed.HIGHLIGHTSReview article describes nutritional requirements of endurance exercises.It also describes nutritional interventions to enhance the endurance potential in athletes.
耐力是指骨骼肌持续承受运动艰苦的能力。耐力运动有三个阶段:运动前、运动中和运动后。推动这些阶段的营养需求因强度、运动类型、个体身体成分、训练、天气条件等因素而异。一般来说,运动前阶段需要合成糖原和分解备用糖原。而在运动阶段,需要快速吸收外源性葡萄糖,释放胰岛素将葡萄糖输送到肌肉细胞,补充电解质的损失,促进体液潴留等。然而,运动后阶段需要快速吸收氨基酸,促进肌肉蛋白质合成,修复受损的肌肉纤维和肌腱,改善炎症、氧化应激等。因此,建议使用能够满足这些代谢需求的营养来源。在这篇综述中,讨论了各种饮食干预措施,包括营养物质的摄入时间和数量,这些干预措施可以促进上述代谢需求,从而提高运动员的耐力潜力。