论文标题
新的液压性能模型的好处和局限性
Benefits and limitations of a new hydraulic performance model
论文作者
论文摘要
目的：绩效模型是教练和运动员优化竞争成果或训练时间表的重要工具。据报道，最近发表的一个液压性能模型在预测间歇性运动过程中的恢复方面胜过建立的工作余量模型。优化了新的液压模型以预测运动恢复动力学。在这项工作中，我们假设该模型的好处是以代谢反应不准确的预测为代谢反应的，例如$ \ dot {v} _ {\ Mathrm {o} _2} $。 方法：将液压模型预测与呼吸呼吸$ \ dot { $ \ dot {v} _ {\ mathrm {o} _2 \ mathrm {max}}} \; 3.59 \ pm 0.62 $ l/min）。每次测试均在循环测量计上以2至12分钟的持续时间进行自动衰竭。比较重点是$ \ dot {v} _ {\ mathrm {o} _2} $ kinetics的发作。 结果：平均而言，液压模型在练习中预测峰值$ \ dot {v} _ {\ mathrm {o} _2} $，$ 216 \ pm113 $ 〜s比数据中观察到的早。新的液压模型也没有预测所谓的$ \ dot {v} _ {\ mathrm {o} _2} $ slow component，并做出了一个不切实际的假设，即以练习为ONSET ohet ohet ohet op ohit of Onset o o Onset。 结论：虽然新的液压模型可能是预测能量回收的有力工具，但不应使用它来预测高强度练习期间的代谢反应。本研究为新液压模型的益处和局限性提供了更全面的了解。数据和代码作为开源发表。
Purpose: Performance models are important tools for coaches and athletes to optimise competition outcomes or training schedules. A recently published hydraulic performance model has been reported to outperform established work-balance models in predicting recovery during intermittent exercise. The new hydraulic model was optimised to predict exercise recovery dynamics. In this work, we hypothesised that the benefits of the model come at the cost of inaccurate predictions of metabolic responses to exercise such as $\dot{V}_{\mathrm{O}_2}$. Methods: Hydraulic model predictions were compared to breath-by-breath $\dot{V}_{\mathrm{O}_2}$ data from 25 constant high-intensity exercise tests of 5 participants (age $32\pm7.8$ years, weight $73.6 \pm 5.81$ kg, $\dot{V}_{\mathrm{O}_2\mathrm{max}} \; 3.59 \pm 0.62$ L/min). Each test was performed to volitional exhaustion on a cycle ergometer with a duration between 2 and 12 min. The comparison focuses on the onset of $\dot{V}_{\mathrm{O}_2}$ kinetics. Results: On average, the hydraulic model predicted peak $\dot{V}_{\mathrm{O}_2}$ during exercise $216\pm113$~s earlier than observed in the data. The new hydraulic model also did not predict the so-called $\dot{V}_{\mathrm{O}_2}$ slow component and made the unrealistic assumption that there is no $\dot{V}_{\mathrm{O}_2}$ at the onset of exercise. Conclusion: While the new hydraulic model may be a powerful tool for predicting energy recovery, it should not be used to predict metabolic responses during high-intensity exercise. The present study contributes towards a more holistic picture of the benefits and limitations of the new hydraulic model. Data and code are published as open source.
