DAY-TO-DAY VARIATION IN HEART RATE AT DIFFERENT LEVELS OF SUBMAXIMAL EXERTION: IMPLICATIONS FOR MONITORING TRAINING
DAY-TO-DAY VARIATION IN HEART RATE AT DIFFERENT LEVELS OF SUBMAXIMAL EXERTION: IMPLICATIONS FOR MONITORING TRAINING
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DOI：
10.1519/jsc.0b013e3181a2dcdc
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发表时间：
2009-05-01
影响因子：
3.2
通讯作者：
Lambert, Michael I.
中科院分区：
文献类型：
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作者：
Lamberts, Robert P.;Lambert, Michael I.
Lamberts，RP和Lambert，MI。次极量运动不同水平下心率的日变化：对监测训练的意义。J Strength Cond Res 23（3）：1005-1010，2009-希姆斯测试，包括增加工作负荷的受控运动，已开发用于监测运动员训练状态和累积疲劳的变化。由于工作负荷会影响心率的日常变化，因此需要确定与最高灵敏度相关的运动强度，以改善这些心率测量结果的可解释性。本研究的目的是确定达到不同运动强度的受试者的次最大心率和恢复心率的受试者内每日变化。38名受试者参加了这项研究，在熟悉之后，基于在第一次测试期间引起的预测心率最大值的百分比（即，组：< 85、85-90、90-95和> 95%最大心率）。在接下来的4天内，在一定强度范围（最大心率的61-98%）和恢复期内测定心率变化。在所有组中，心率的变化随着运动强度的增加而减少。在85-90%组（3 +/- 1 B.min（-1））和> 95%组（3 +/- 2 B.min（-1））中，在试验的最后阶段结束时发现心率变化最小。最低的变化在恢复期间发生在最后一个阶段后的第一分钟。虽然各组之间没有显著差异，但85-90%组显示出心率变化最小的趋势。如果要监测运动员的心率变化和心率恢复，次最大方案应引起心率在最大心率的85%至90%之间，因为该强度与最小的日常变化相关。
Lamberts, RP and Lambert, MI. Day-to-day variation in heart rate at different levels of submaximal exertion: implications for monitoring training. J Strength Cond Res 23(3): 1005-1010, 2009-The HIMS test, which consists of controlled exercise at increasing workloads, has been developed to monitor changes in training status and accumulative fatigue in athletes. As the workload can influence the day-to-day variation in heart rate, the exercise intensity, which is associated with the highest sensitivity, needs to be established with the goal of refining the interpretability of these heart rate measurements. The aim of the study was to determine the within-subject day-to-day variation of submaximal and recovery heart rate in subjects who reached different exercise intensities. Thirty-eight subjects participated in this study and after familiarization were allocated to 1 of 4 groups based on the percentage of predicted heart rate maximum that was elicited during the first test (i.e., groups: < 85, 85-90, 90-95, and > 95% maximum heart rate). Variation in heart rate was determined for the following 4 days at a range of intensities (61-98% of maximum heart rate) and recovery periods. Variation in heart rate decreased with increasing exercise intensity in all groups. The lowest variation in heart rate was found at the end of the last stage of the test in the 85-90% group (3 +/- 1 b.min(-1)) and > 95% group (3 +/- 2 b.min(-1)). The lowest variation during the recovery periods occurred at the first minute after the last stage. Although there were no significant differences between the groups, the 85-90% group showed a tendency to have the lowest variation in heart rate. If changes in heart rate and heart rate recovery are to be monitored in athletes, a submaximal protocol should elicit heart rate between 85 and 90% of maximum heart rate, because this intensity is associated with the least day-to-day variation.