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首页> 外文期刊>The Journal of Experimental Biology >Dynamics of pleasure displeasure at the limit of exercise tolerance: conceptualizing the sense of exertional physical fatigue as an affective response
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Dynamics of pleasure displeasure at the limit of exercise tolerance: conceptualizing the sense of exertional physical fatigue as an affective response

机译：运动宽容极限的快乐动态：概念化担心身体疲劳感的情感反应

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摘要

The search for variables involved in the regulation and termination of exercise performance has led to integrative models that attribute a central role to the brain and utilize an array of psychological terms (e.g. sensation, perception, discomfort, tolerance). We propose that theorizing about exercise regulation would benefit from establishing cross-disciplinary bridges to research fields, such as affective psychology and neuroscience, in which changes along the dimension of pleasure-displeasure are considered the main channel via which homeostatic perturbations enter consciousness and dictate corrective action (slowing down or stopping). We hypothesized that ratings of pleasure-displeasure would respond to the severity of homeostatic perturbation and would be related to time to exhaustion during exercise performed at an unsustainable intensity. In a within-subjects experiment (N=15, 13 men and 2 women, age 23.4 +/- 2.2 years; maximal oxygen uptake 46.0 +/- 8.0 ml kg(-1) min(-1)), we compared the slope of ratings of pleasure-displeasure (acquired every 1 min) during cycling exercise at a power output 10% above critical power until volitional termination under glycogen-loaded and glycogen-depleted conditions. As hypothesized, ratings of pleasure-displeasure declined more steeply under glycogen depletion (P=0.009, d=0.70) and correlated closely with time to exhaustion under both glycogen-loaded (r=0.85; P0.001) and glycogen-depleted conditions (r=0.83; P0.001). We conclude that in exercise, as in other domains, changes in pleasure-displeasure may be the main channel via which homeostatic perturbations enter consciousness. This proposal may have important implications for conceptualizing and identifying the neurobiological mechanisms of the sense of exertional physical fatigue.
机译：搜索运动性能调节和终止中涉及的变量导致了综合模型，这些模型将核心作用归因于大脑并利用一系列心理术语（例如感觉，感知，不适，容忍）。我们建议关于行使监管的理论将受益于建立对研究领域的跨学科桥梁，例如情感心理学和神经科学，其中沿着快乐的维度的变化被视为主管扰动进入意识并决定纠正行动（减慢或停止）。我们假设快乐的评级令人满意会反应稳态扰动的严重程度，并且在以不可持续的强度进行运动期间耗尽的时间。在受试者内部实验中（n = 15，13名男子和2名女性，年龄23.4 +/- 2.2岁;我们比较斜坡的最大氧吸收46.0 +/- 8.0 ml kg（-1）min（-1））在循环运动期间在功率输出10％以上的临界功率之前，在临时临界功率上的循环运动中的额度令人满意（每1分钟获得每1分钟）直至在糖原和糖原耗尽条件下的激动终止。如假设，在糖原耗尽下，快乐的评级更陡峭地下降（p = 0.009，d = 0.70），并且在糖原加载（r = 0.85; p <0.001）和糖原耗尽条件下与含量紧密相关r = 0.83; p <0.001）。我们得出结论，在运动中，如在其他领域，愉悦的变化可能是主要渠道，通过该主干道通过哪个主管扰动进入意识。该提案可能对概念化和鉴定稳定性的身体疲劳感的神经生物学机制具有重要意义。

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