Maximal Heart Rate and Treadmill Performance of Healthy Women in Relation to Age
Maximal Heart Rate and Treadmill Performance of Healthy Women in Relation to Age
复制标题
健康女性的最大心率和跑步机表现与年龄的关系
作者：
L. Sheffield;J. Maloof;J. Sawyer;D. Roitman
对95名年龄在19岁至69岁之间的无症状、主要是久坐的女性进行了最大平板运动心率、工作能力和心电图反应的研究。平均最大心率（MHR）与年龄呈负相关，MHR = 216 - 0.88（年龄）± 10次/min（Xi 1 SD）。跑台运动耐力为7.64 min ± 1.99 min。随着年龄的增长，跑步机耐力的降低没有统计学意义。6%的受试者发生无症状ST段压低。ST段向上倾斜者占5%，平坦者占1%。ST段压低女性患者的平均年龄为52岁，而所有受试者的平均年龄为39岁。在95名受试者中，有20名在运动过程中发现了早搏，并且与年龄无关。采用目标心率的女性分级运动测试应使用专门为女性开发的心率表。这些表不需要纠正运动训练或久坐的生活方式。
Maximal treadmill exercise heart rate, work capacity and electrocardiographic response were studied in 95 asymptomatic, predominantly sedentary women between the ages of 19 and 69 years. Average maximal heart rate (MHR) was found inversely related to age, such that MHR = 216 - 0.88 (years of age) ± 10 beats/min (Xi 1 SD). Treadmill exercise endurance was 7.64 min ± 1.99. The reduction of treadmill endurance with advancing age was not statistically significant. Asymptomatic ST-segment depression occurred in 6% of subjects. In 5% the ST segment sloped upward, and in 1% it was flat. Mean age of women with ST depression was 52 years, compared with 39 years mean age of all subjects. Premature beats during exercise were found in 20 of 95 subjects, and were not related to age. Graded exercise testing of women employing target heart rates should use heart rate tables developed especially for women. These tables do not require correction for athletically trained or sedentary life-style.