Oh-Park M, Zohman L R, Abrahams C
Department of Rehabilitation Medicine, Montefiore Medical Center, Albert Einstein College of Medicine, Bronx, New York 10467, USA.
Am J Phys Med Rehabil. 1997 May-Jun;76(3):208-12. doi: 10.1097/00002060-199705000-00009.
Exercise training programs are usually based on a maximal exercise stress test; however, this test is often difficult and sometimes frightening to older persons. This preliminary study reports on a fixed-distance, submaximal walk test and compares its usefulness for exercise prescription to that of the traditional maximal stress test. Ten cardiac patients, with an average age of 72 years (4 men), had recently clinically indicated maximal graded stress tests. Within one week, each had the walk test, which consisted of walking three times up and back 100 feet in the hospital corridor (total of 600 feet) as rapidly as possible, with a blood pressure cuff on their arm and carrying the electrocardiogram cable. Resting and peak heart rate, blood pressure, symptoms, and exercise electrocardiograms were compared for the walk test v the maximal stress test. Oxygen consumption was calculated from the peak workload on the maximal stress test and from walking speed on the walk test. The peak heart rates after the walk test were within the target heart rate zone (70-85%) for exercise programming, as obtained from the maximal stress test, in all patients except one. The calculated peak oxygen consumption from the walk test was also within the training zone (60-80%) obtained from the maximal stress test in all patients except one. This pilot study shows that a submaximal, steady state timed walk of 600 feet can be a feasible method of providing the information for exercise programming, possibly avoiding the need for a maximal stress test. This walk test can be performed easily by health-related staff without sophisticated facilities in an inpatient rehabilitation unit or nursing home; however, further study with a larger number of patients is necessary before this method of exercise prescription can be recommended.
运动训练计划通常基于最大运动应激测试；然而，这项测试对老年人来说往往很困难，有时还会令他们感到恐惧。这项初步研究报告了一种固定距离、次最大步行测试，并将其在运动处方中的效用与传统最大应激测试进行了比较。十名心脏病患者，平均年龄72岁（4名男性），最近在临床上接受了最大分级应激测试。在一周内，每人都进行了步行测试，测试内容是在医院走廊尽可能快地往返走三次100英尺（总共600英尺），手臂上戴着血压袖带并携带心电图电缆。比较了步行测试和最大应激测试的静息心率、峰值心率、血压、症状及运动心电图。根据最大应激测试的峰值工作量和步行测试的步行速度计算耗氧量。除一名患者外，所有患者步行测试后的峰值心率均在根据最大应激测试得出的运动计划目标心率区（70 - 85%）内。除一名患者外，所有患者步行测试计算得出的峰值耗氧量也在根据最大应激测试得出的训练区（60 - 80%）内。这项初步研究表明，600英尺的次最大稳态定时步行可以作为一种可行的方法，为运动计划提供信息，可能无需进行最大应激测试。这种步行测试可以由住院康复单元或养老院中没有复杂设备的医护人员轻松完成；然而，在推荐这种运动处方方法之前，有必要对更多患者进行进一步研究。
