Camm A J, Fei L
Department of Cardiological Sciences, St. George's Hospital Medical School, London, UK.
Clin Cardiol. 1996 May;19(5):424-8. doi: 10.1002/clc.4960190518.
Knowledge of normal adjustment of heart rate and its response to exercise is essential for understanding and management of chronotropic incompetence. The autonomic nervous system plays an important role in the modulation of normal heart rate. Chronotropic responses of a normal heart to exercise are associated with parallel hemodynamic changes in order to meet the metabolic demand of the body. Determination of chronotropic incompetence is widely based on the assessment of maximal heart rate. However, maximal effort should always be confirmed before an attempt to measure a maximal heart rate is made.
了解心率的正常调节及其对运动的反应对于理解和管理变时性功能不全至关重要。自主神经系统在正常心率的调节中起着重要作用。正常心脏对运动的变时反应与平行的血流动力学变化相关，以满足身体的代谢需求。变时性功能不全的判定广泛基于对最大心率的评估。然而，在尝试测量最大心率之前，应始终确认已尽最大努力。
