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在肥胖的年轻男性中,在FATmax稳定状态运动期间代谢反应的可靠性

Isaac A Chávez-Guevara¹, Ratko Peric^2,3, Francisco J Amaro-Gahete^4,5

¹Autonomous University of Baja California.

Research quarterly for exercise and sport

|February 7, 2024

概括

一个单级运动测试 (GXT) 不准确地预测了肥胖男性在最大脂肪氧化 (FATmax) 时长时间运动期间的能量代谢. 对于精确的运动处方,建议进行专门的FATmax试验.

科学领域:

运动生理学运动生理学
肥胖问题研究研究
代谢研究代谢研究

背景情况:

精确评估能量代谢对于运动处方至关重要,特别是在肥胖患者中.
最大脂肪氧化 (FATmax) 是在运动期间优化脂肪利用的关键强度.
从标准运动测试中预测代谢参数的可靠性和准确性需要在特定人群中进行验证.

研究的目的:

为了评估血液乳酸盐水平 (BLa) 的可靠性,能源消耗和基质利用在FATmax强度的长时间炼期间.
评估单个分级运动测试 (GXT) 在FATmax时预测能量代谢的准确性.
为了确定GXT适合于肥胖男性的运动处方.

主要方法:

17名肥胖的年轻人接受了FATmax和心肺健康评估的GXT.
参与者完成了两个单独的60分钟长期FATmax试验,以评估可靠性.
间接热量计测量了能量消耗和基质利用率;毛细血管血液样本测量了BLa.

主要成果:

在长时间的FATmax试验中,血液乳酸,脂肪和碳水化合物利用率表现出良好的可靠性和一致性.
能源支出显示了适度的系统偏差,但可靠性很好.
GXT显著高估了脂肪和碳水化合物利用和能源支出,同时低估了FATmax的BLa.

结论:

单个GXT在肥胖男性的FATmax长时间炼期间准确预测能量代谢是不可靠的.
通过稳定状态FATmax试验 (40-60分钟) 进行直接评估是必要的,以便量身定制和精确的运动处方.
目前的GXT协议可能会导致肥胖患者的运动计划不足,旨在优化脂肪氧化.

关键词:

能量代谢能量代谢运动测试运动测试运动测试间接测热仪间接测热仪间接测热仪营养营养营养营养身体炼就是体力炼.

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