EFFECTS OF CHO ON PERCEIVED EXERTION AND BLOOD LACTATE RESPONSE TO EXERCIS

CHO 对运动感知和血乳酸反应的影响

• 批准号: 7718601
• 负责人: Arthur Weltman
• 金额: $ 3.45万
• 依托单位: UNIVERSITY OF VIRGINIA
• 依托单位国家: 美国
• 财政年份: 2008
• 资助国家: 美国
• 起止时间: 2008-03-01 至 2009-02-28
• 项目状态: 已结题
• 来源: https://reporter.nih.gov/project-details/7718601
• 关键词: Affect; Blood; Blood specimen; Carbohydrates; Computer Retrieval of Information on Scientific Projects Database; Exercise; Exertion; Funding; Grant; Human Resources; Ingestion; Institution; Oxygen Consumption; Performance; Physiological; Rate; Research; Research Personnel; Resources; Source; Supplementation; Techniques; Training; United States National Institutes of Health; Workload; base; prescription document; prescription procedure; response

This subproject is one of many research subprojects utilizing the resources provided by a Center grant funded by NIH/NCRR. The subproject and investigator (PI) may have received primary funding from another NIH source, and thus could be represented in other CRISP entries. The institution listed is for the Center, which is not necessarily the institution for the investigator. Exercise prescription techniques are currently based on assessment of maximal oxygen consumption and the blood lactate response to exercise. Because of the need for blood samples and trained personnel for lactate assessment, ratings of perceived exertion (RPE) have been used as an exercise prescription technique as RPE have been shown to accurately produce specific blood lactate concentrations. The lactate threshold (LT) is defined as the highest work load attained prior to blood lactate accumulation during exercise. Training at an RPE corresponding to a blood lactate concentration above the LT results in improvements in physiological variables associated with performance. Performance improvements have also been observed while ingesting carbohydrate before and during exercise. As little is known regarding the effects of carbohydrate supplementation on the blood lactate-RPE relationship, the present study will evaluate whether carbohydrate supplementation affects this relationship. We hypothesize that the blood lactate-RPE relationship will be altered with carbohydrate ingestion, thus affecting the use of RPE for producing a given blood lactate during exercise.

该副本是利用众多研究子项目之一 由NIH/NCRR资助的中心赠款提供的资源。子弹和 调查员（PI）可能已经从其他NIH来源获得了主要资金， 因此可以在其他清晰的条目中代表。列出的机构是 对于中心，这不一定是调查员的机构。 锻炼处方技术目前是基于对最大氧气消耗和血液乳酸对运动的反应的评估。 由于需要血液样本和受过训练的人员进行乳酸评估，因此已证明将感知的劳累（RPE）用作运动处方技术，因为RPE已被证明可以准确地产生特定的血液乳酸浓度。乳酸阈值（LT）定义为在运动过程中血液乳酸积聚之前达到的最高工作量。 与LT高于血液乳酸浓度相对应的RPE的训练会改善与性能相关的生理变量。 在运动前和运动过程中摄入碳水化合物时，还观察到了绩效的改善。 关于补充碳水化合物对血液乳酸-RPE关系的影响知之甚少，本研究将评估补充碳水化合物是否影响这种关系。 我们假设摄入碳水化合物将改变血液乳酸-RPE的关系，从而影响RPE在运动过程中产生给定的血液乳酸。