Therefore, heart rate (HR) monitoring is an important component of cardiovascular fitness assessments and training programs. 1 HR is a useful indicator of physiologic adaptation and effort intensity. For this reason, heart rate monitors (HRMs) have become an indispensable tool for athletes in achieving their training objectives. The key to the effective training of endurance athletes in disciplines such as the triathlon, cycling, and long-distance running is to perform the training within a specific range of heart rate (HR) values. We conclude that the HRM is not a suitable tool for monitoring heart arrhythmias in athletes and propose an algorithm to exclude the suspicion of exercise-induced arrhythmia detected by HRMs in asymptomatic, physically active individuals. We detected a serious tachyarrhythmia in the HRM and Holter ECG data with concomitant clinical symptoms in only one athlete, who was forced to cease exercising. In 15% of athletes, single ventricular/supraventricular beats were detected by the Holter ECG but not by the HRM. HRMs indicated surprisingly high short-term HRs in 45% of athletes that were not detected by the Holter ECG and were artifacts. No signs of arrhythmia were detected during exercise in approximately 39% of athletes, and concordant HRs were recorded by the HRMs and Holter ECG. Average HRs during exercise were precisely recorded by all types of HRMs. Each athlete simultaneously wore a Holter electrocardiogram (ECG) recorder and an HRM during typical endurance training in which they had previously detected “arrhythmias” to verify the diagnosis. We examined 142 regularly training endurance runners and cyclists, aged 18-51 years, with unexplained HR abnormalities indicated by various HRMs to assess the utility of HRMs in diagnosing exertion-induced arrhythmias. Unfortunately, studies assessing the reliability of these devices to help control HR disturbances during exercise do not exist. In many cases, the HRM indicates an unusually high heart rate (HR) or even arrhythmias during training.
Millions of physically active individuals worldwide use heart rate monitors (HRMs) to control their exercise intensity.
0 kommentar(er)
