NOMOGRAM BASED ON METABOLIC EQUIVALENTS AND AGE FOR ASSESSING AEROBIC EXERCISE CAPACITY IN MEN
NOMOGRAM BASED ON METABOLIC EQUIVALENTS AND AGE FOR ASSESSING AEROBIC EXERCISE CAPACITY IN MEN
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DOI：
10.1016/0735-1097(93)90832-l
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发表时间：
1993-07-01
影响因子：
24
通讯作者：
HIDEG, A
中科院分区：
文献类型：
--
作者：
MORRIS, CK;MYERS, J;HIDEG, A
目标。这项研究的目标是创建一个基于最大运动量(代谢当量[METS])和年龄的诺模图，用于评估患者进行动态运动的能力，以量化身体残疾程度或相对身体活动能力。提供与年龄相关的运动量估计在临床上是有用的。这样的估计可以从跑步机运动试验和年龄测量或估计的最大摄氧量(以METS为单位)得出。这是一种向患者传达心肺状况、鼓励提高运动能力和量化残疾的有效手段。对1388例无明显心脏病的男性患者(平均年龄57岁，范围21~89岁)的运动试验结果进行了回顾，这些患者因临床原因被推荐进行运动试验。这一转诊组以及活动(n=346)和久坐(n=253)患者的亚组进行了分析，以确定运动试验反应的年龄和年龄的NOM，包括METS、最大心率和最大收缩压。根据这些信息计算出回归方程，并创建了根据患者的年龄和MET水平计算运动能力程度的诺模图。在另一组244名明显健康的正常男性志愿者(平均年龄45岁+/-14岁，范围18到72岁)中进行了类似的分析，他们接受了直接测量呼出气体的运动测试。对于整个临床转诊组(METS=18.0-0.15[年龄])和活动(METS=18.7-0.15[年龄])和久坐不动(METS=16.6-0.16[年龄])患者的亚组，推导了预测METS的年龄方程。所有结果均有统计学意义，p值均为0.001。在使用呼吸机气体交换进行运动试验的正常男性志愿者组中，最大心率和METS随年龄的下降并不像转诊组那样剧烈。尽管正常组证实了以前在类似受试者中发表的诺模图，但从患者那里得出的方程和诺模图与先前报道的不同；与以前使用健康志愿者进行的研究相比，转诊组的方程和诺模图更适合于通常转诊到医院或办公室内科诊所进行测试的患者。介绍了基于年龄的MET标准，以及使医生能够评估患者相对于其年龄组的运动能力的人群特定诺模图。
Objectives. The goal of this study was to create a nomogram, based on maximal exercise capacity (in metabolic equivalents [METs]) and age, for assessing a patient's ability to perform dynamic exercise to quantify the level of physical disability or relative capacity for physical activity.Background. Providing an estimation of exercise capacity relative to age is clinically useful. Such an estimate can be derived from measured or estimated maximal oxygen uptake (in METs) from treadmill exercise testing and age. It is an effective means of communicating to patients their cardiopulmonary status, encouraging improvement in exercise capacity and quantifying disability.Methods. Exercise test results of 1,388 male patients (mean age 57 years, range 21 to 89) free of apparent heart disease who were referred for exercise testing for clinical reasons were retrospectively reviewed. This referral group as well as subgroups of active (n = 346) and sedentary (n = 253) patients were analyzed to determine noms for age and for age by decades for exercise test responses, including METs, maximal heart ate and maximal systolic blood pressure. Regression equations were calculated from this information, and a nomogram for calculating degree of exercise capacity from age and MET level achieved by a patient was created. A similar analysis was performed in a separate group of 244 apparently healthy, normal male volunteers (mean age 45 +/- 14 years, range 18 to 72) who underwent exercise testing with direct measurement of expired gases.Results. Equations for predicted METs for age were derived for the entire clinical referral group (METs = 18.0 - 0.15[Age]) and for the subgroups of active (METs = 18.7 - 0.15[Age]) and sedentary (METs = 16.6 - 0.16[Age]) patients. All results achieved statistical significance, with p values < 0.001. In the volunteer group of normal men who performed exercise testing with ventilatory gas exchange, the decline in maximal heart rate and METs with age was not as steep as in the referral group.Although the normal group confirmed nomograms published previously among similar subjects, the equations derived from the patients differed from those previously reported; in contrast to previous studies using healthy volunteers, the equations and nomograms for the referral group are more appropriate for patients typically referred for testing in a hospital or office-based internal medicine practice.Conclusions. Norms for METs based on age are presented as well as population-specific nomograms that enable physicians to assess patients' exercise capacity relative to their age group.