Wood Robert H, Hondzinski Jan M, Lee C Matthew
Louisiana State University, Department of Kinesiology, 112 Long Fieldhouse, Baton Rouge, LA 70803, USA.
Age Ageing. 2003 Jul;32(4):415-21. doi: 10.1093/ageing/32.4.415.
autonomic modulation of the heart, as measured by heart rate variability, is directly associated with cardiorespiratory fitness and inversely associated with all-cause mortality. The extent to which cardiorespiratory fitness and heart rate variability are related in older adults is difficult to ascertain due to difficulties in assessing physical fitness among older age groups.
to examine heart rate variability and measures of physical function, thereby allowing for the inclusion of a greater cross-section of older adults than can be tested using traditional fitness tests.
39 older adults (mean age: 73.2+/-8.1 years; range=60-93 years) underwent evaluation of short-term (5 min) heart rate variability and performance of the American Alliance for Health Physical Education Recreation and Dance Functional Fitness Assessment for Older Adults. Pearson correlation, stepwise multiple regression, and factor analysis were used to describe associations among age, heart rate variability, and functional fitness test-items.
significant associations were observed for age and the standard deviation of all normal RR intervals (r=-0.39, P<0.01), and the American Alliance for Health Physical Education Recreation and Dance cardiovascular endurance (r=0.45, P<0.01), strength (r=-0.53, P<0.001), agility (r=0.80, P<0.001), and coordination (r=0.57, P<0.001) items. Standard deviation of all normal RR intervals was negatively associated with the American Alliance for Health Physical Education Recreation and Dance agility (r=-0.37, P<0.01) and coordination (r=-0.49, P<0.001) items. Stepwise multiple regression included only the American Alliance for Health Physical Education Recreation and Dance coordination performance in predicting standard deviation of all normal RR intervals [standard deviation=63.98-2.5 (coordination), F=33.9, P<0.01]. Factor analysis revealed that age, agility, and coordination comprised one factor with a high degree of commonality.
the association between heart rate variability and coordination suggests concurrent aging of autonomic and psychomotor function.
通过心率变异性测量的心脏自主神经调节与心肺适能直接相关，与全因死亡率呈负相关。由于在老年人群体中评估身体素质存在困难，因此难以确定老年人的心肺适能与心率变异性之间的关联程度。
研究心率变异性和身体功能指标，从而纳入比使用传统体能测试所能测试的范围更广的老年人群体。
39名老年人（平均年龄：73.2±8.1岁；年龄范围=60-93岁）接受了短期（5分钟）心率变异性评估以及美国健康体育教育娱乐与舞蹈联盟老年人功能性体能评估。使用Pearson相关性分析、逐步多元回归分析和因子分析来描述年龄、心率变异性和功能性体能测试项目之间的关联。
观察到年龄与所有正常RR间期的标准差之间存在显著关联（r=-0.39，P<0.01），以及与美国健康体育教育娱乐与舞蹈联盟的心血管耐力（r=0.45，P<0.01）、力量（r=-0.53，P<0.001）、敏捷性（r=0.80，P<0.001）和协调性（r=0.57，P<0.001）项目之间存在显著关联。所有正常RR间期的标准差与美国健康体育教育娱乐与舞蹈联盟的敏捷性（r=-0.37，P<0.01）和协调性（r=-0.
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