使用血中乳酸水平来设置运动强度的有效性
Momoko Kobayashi1, Natsuki Yamamura2, Takahiro Mukaimoto3
1Graduate School of Pharmaceutical Sciences, Tokyo University of Science, Tokyo, Japan.
The Journal of sports medicine and physical fitness
|September 5, 2025
概括
血中乳酸水平有效决定运动强度,显示高强度跑步后血糖的暂时上升. 葡萄糖和β- 基酸盐的变化表明运动期间的代谢变化.
科学领域:
- 运动生理学
- 运动科学
- 生物化学
背景情况:
- 最大心率和氧气吸收是常见的运动强度指标.
- 血中乳酸水平提供了一个更敏感的耐力表现的生物标志物.
- 这项研究验证了基于乳酸的强度,并检查了代谢反应.
研究的目的:
- 通过在跑步时的血中乳酸水平来评估运动强度.
- 分析高强度和低强度运动期间的血糖和β-酸盐动态.
- 了解能量代谢在不同强度的运动中发生的变化.
主要方法:
- 乳酸曲线测试以确定12名参与者的运动强度.
- 四个运行试验:低强度30分钟,高强度30分钟,低强度60分钟和控制.
- 在运动前和运动后通过指尖穿刺测量血糖和β-基酸盐 (长达240分钟).
主要成果:
- 在30分钟高强度运行后血糖显著增加,在30分钟内恢复到基线.
- 在高强度30分钟和低强度60分钟运行后观察到β-酸盐水平的显著增加.
- 代谢标记的变化反映了不同运动条件下的能量基质利用情况.
结论:
- 血液乳酸测量可以确定运动条件,诱导运动后暂时的血糖升高.
- 葡萄糖和β-基酸盐的变化为能量代谢转变提供了洞察力.
- 需要对其他代谢指标进行进一步的研究,以充分阐明能量代谢机制.
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