Changes in heart rate recovery in response to acute changes in training load
Changes in heart rate recovery in response to acute changes in training load
复制标题
DOI：
10.1007/s00421-007-0516-6
复制
发表时间：
2007-11-01
影响因子：
3
通讯作者：
Lambert, Michael I.
中科院分区：
文献类型：
--
作者：
Borresen, Jill;Lambert, Michael I.
心率恢复是自主神经功能的间接标志，其中的变化可能提供量化训练生理效果的实用方法。我们评估了标准化次最大跑步（心率间隔监测系统：HIMS）测试后心率恢复百分比 (HRr%) 是否随训练负荷的急剧变化而变化。总共 28 名男性和女性（平均年龄 30 +/- 5 岁）随意训练了 2 周，在此期间记录了他们的心率 (HR)。使用训练脉冲 (TRIMP) 量化训练负荷。根据参与者从第 1 周到第 2 周是否增加（I 组，n = 9）、减少（D 组，n = 8）或保持训练负荷恒定（S 组，n = 11）进行分组。每周，受试者都会完成一项 HIMS 测试。比较组间测试结束时 HR 的周间变化和 HRr%。从第 1 周到第 2 周，各组之间 TRIMP 的平均百分比变化显着不同（I 组，55 +/- 21% vs S 组，-6 +/- 6% vs D 组，-42 +/- 16%；P < 0.05）。 HIMS 2 后，I 组的 HRr% 较慢，D 组的 HRr% 往往比 HIMS 1 后稍快（平均百分比变化 5.6 +/- 8.7 与 -2.6 +/- 3.9；P = 0.03）。因此，随着训练负荷的增加，观察到对 HRr 的负面影响。次最大心率不受训练负荷急剧变化的影响。运动期间的 HR 可以测量心脏负荷，而 HRr 可以反映自主神经系统的状态，表明身体对运动做出反应的能力。
Heart rate recovery is an indirect marker of autonomic function and changes therein may offer a practical way of quantifying the physiological effects of training. We assessed whether per cent heart rate recovery (HRr%) after a standardized sub-maximal running (Heart rate Interval Monitoring System: HIMS) test, changed with acute changes in training load. A total of 28 men and women (mean age 30 +/- 5 years) trained ad libitum for 2 weeks during which their heart rate (HR) was recorded. Training load was quantified using Training Impulse (TRIMPs). The participants were grouped based on whether they increased (Group I, n = 9), decreased (Group D, n = 8) or kept their training load constant (Group S, n = 11) from week 1 to week 2. Each week, the subjects completed a HIMS test. Changes between weeks in HR at the end of the test and HRr% were compared between groups. Mean per cent change in TRIMPs from week 1 to week 2 was significantly different among the groups (Group I, 55 +/- 21% vs Group S, -6 +/- 6% vs Group D, -42 +/- 16%; P < 0.05). Group I had a slower HRr% and Group D tended to have a slightly faster HRr% after HIMS 2 than after HIMS 1 (mean per cent change 5.6 +/- 8.7 vs -2.6 +/- 3.9; P = 0.03). Thus a negative effect on HRr was observed with increases in training load. Sub-maximal HR was not affected by acute changes in training load. Whereas HR during exercise measures cardiac load, HRr may reflect the state of the autonomic nervous system, indicating the body's capacity to respond to exercise.