Age-predicted maximal heart rate revisited
Age-predicted maximal heart rate revisited
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DOI：
10.1016/s0735-1097(00)01054-8
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发表时间：
2001-01-01
影响因子：
24
通讯作者：
Seals, DR
中科院分区：
文献类型：
--
作者：
Tanaka, H;Monahan, KD;Seals, DR
目的 我们试图确定一个预测健康成年人最大心率 (HRmax) 的通用方程。 背景 年龄预测 HRmax 方程（即 220 - 年龄）通常用作制定运动计划的基础、实现最大运动量的标准以及诊断运动测试期间的临床指南。尽管其重要性和广泛使用，HRmax 方程的有效性从未在包含足够数量老年人的样本中得到证实。 方法 首先，使用荟萃分析方法收集组平均 HRmax，即来自 351 项研究（涉及 492 个组和 18,712 名受试者）的值。随后，新方程在一项对照良好的实验室研究中进行了交叉验证，其中测量了 514 名健康受试者的 HRmax。 结果 在荟萃分析中，使用 208 - 0.7 X 年龄方程，HRmax 与年龄密切相关 (r = -0.90)。实验室研究中获得的回归方程（209 - 0.7 X 年龄）与荟萃分析中获得的回归方程几乎相同。回归线在男性和女性之间没有差异，也不受习惯性身体活动水平的广泛变化的影响。结论 1) 预测 HRmax 的回归方程是 208 - 0.7 X 健康成年人的年龄。 2) HRmax 在很大程度上仅通过年龄来预测，并且与性别和习惯性身体活动状态无关。我们的研究结果表明，当前使用的方程低估了老年人的最大心率。这会导致低估运动测试期间施加的身体压力的真实水平以及规定的运动计划的适当强度。 (J Am Coil Cardiol 2001；37:153-6) (C) 2001 年，美国心脏病学会。
OBJECTIVES We sought to determine a generalized equation for predicting maximal heart rate (HRmax) in healthy adults.BACKGROUND The age predicted HRmax, equation (i.e., 220 - age) is commonly used as a basis for prescribing exercise programs, as a criterion for achieving maximal exertion and as a clinical guide during diagnostic exercise testing. Despite its importance and widespread use, the validity of the HRmax equation has never been established in a sample that included a sufficient number of older adults.METHODS First, a meta-analytic approach was used to collect group mean HRmax, values from 351 studies involving 492 groups and 18,712 subjects. Subsequently, the new equation was cross-validated in a well-controlled, laboratory-based study in which HRmax was measured in 514 healthy subjects.RESULTS In the meta-analysis, HRmax was strongly related to age (r = -0.90), using the equation of 208 - 0.7 X age. The regression equation obtained in the laboratory-based study (209 - 0.7 X age) was virtually identical to that obtained from the meta-analysis. The regression line was not different between men and women, nor was it influenced by wide variations in habitual physical activity levels.CONCLUSIONS 1) A regression equation to predict HRmax is 208 - 0.7 X age in healthy adults. 2) HRmax is predicted, to a large extent, by age alone and is independent of gender and habitual physical activity status. Our findings suggest that the currently used equation underestimates HRmax, in older adults. This would have the effect of underestimating the true level of physical stress imposed during exercise testing and the appropriate intensity of prescribed exercise programs. (J Am Coil Cardiol 2001;37:153-6) (C) 2001 by the American College of Cardiology.