We investigated whether heart rate can be controlled consciously. This study examined the effect of 20 minutes of cycling exercise while being conscious about energy conservation on the heart rate. 21 healthy college students (9 men, 12 women) participated three exercise bouts. Exercise bouts were examined under the following three conditions: (a) known condition (participants having information about the exercise duration); (b) unknown condition (participants having no information about the exercise duration) and; (c) conserving energy condition (participants having information about the exercise duration and being conscious about energy conservation). Heart rate in the unknown condition was lower than that in the known condition (p < 0.05); further, it was lower in the conserving energy condition than in the known conditiona€€(p < 0.01). In contrast, the tidal volume of the conserving energy condition was higher than that in the known condition (p < 0.05). In addition, the respiratory rates in the unknown and conserving energy conditions were lower than that in the known condition (p < 0.01). Energy expenditure during exercise was lowest in the conserving energy condition. These results show the possibility of autogenous control of heart rate by taking deep slow breaths consciously during exercise.

中文翻译：

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在运动过程中深呼吸的自主控制心率

我们调查了是否可以有意识地控制心率。这项研究检查了20分钟的自行车运动的影响，同时意识到节能对心率的影响。21名健康的大学生（9名男性，12名女性）参加了三轮运动。在以下三个条件下检查运动回合：（a）已知条件（参与者具有有关运动时间的信息）；（b）病情不明（参与者不知道运动时间的信息）；以及 （c）保持能量状况（参加者掌握有关运动时间的信息并意识到能量的节约）。未知状态下的心率低于已知状态下的心率（p <0.05）；此外，它在守恒能量条件下比在已知条件下要低（p <0.01）。相反，守恒能量条件下的潮气量高于已知条件下的潮气量（p <0.05）。此外，在未知能量和保守能量条件下的呼吸频率低于已知条件下的呼吸频率（p <0.01）。运动过程中的能量消耗在保持能量的条件下最低。这些结果表明，在锻炼过程中，有意识地进行深呼吸会自动控制心律的可能性。