EFFECT OF AGE ON HEMODYNAMIC AND METABOLIC EXERCISE PERFORMANCE

测量呼出气体的最大跑步机运动 在过去的600多名临床正常的BLSA志愿者中进行了测试 五年了。尽管目前正在进行正式的数据分析，但它 似乎与年龄相关的最大心率和最大心率的下降 在小型BLSA示例中记录的最大有氧能力(VO2max)将为 确认了。 为了确定儿茶酚胺在众所周知的年龄相关疾病中的作用 运动能力下降时，我们测定了血浆去甲肾上腺素(NE)和 24例健康人静息和极量平板运动时肾上腺素(E)的变化 男人。静息NE与年龄无关，但68-77岁男性静息E值较高 年龄比那些22-37岁或44-55岁的人要大。尽最大努力 老年男性的NE和E均较高。此外，在次极大时， 工作负载NE和E随年龄增长，归一化前后都是如此 以峰值VO2的百分比表示。 在另一项研究中，相对较长时间的有氧运动对代谢的影响 运动，正在对健康的男性进行评估。

Maximal treadmill exercise with measurement of expired gases has been performed in more than 600 clinically normal BLSA volunteers over the past 5 years. Although a formal data analysis is currently in progress, it appears that the strong age-related decline in both maximal heart rate and maximal aerobic capacity (VO2max) noted in small BLSA examples will be confirmed. To determine the role of catecholamines in the well known age-related decline in exercise capacity, we measured plasma norepinephrine (NE) and epinephrine (E) at rest and during maximal treadmill exercise in 24 healthy men. Resting NE was not age-related but resting E was higher in men 68-77 years old than in those 22-37 or 44-55 years of age. At maximal effort both NE and E were higher in the elderly men. Furthermore, at submaximal workloads NE and E increased with age, both before and after normalization as a percent of peak VO2. In another study, the metabolic effect of relatively prolonged aerobic exercise, is being assessed in healthy men.