Cruts H E, de Vries J, Zilvold G, Huisman K, van Alsté J A, Boom H B
Arch Phys Med Rehabil. 1987 Jan;68(1):14-9.
Thirty-nine subjects, mean age 72 (range 52 to 89), with a leg amputation because of peripheral vascular disease performed graded exercise testing at the start of their prosthetic training program. Their walking performance at the end of the program was assessed and compared with the test findings. They had a history and rest electrocardiogram (ECG) examination which revealed cardiac problems in 75% of the patients. The exercise test was performed on a specially designed arm ergometer permitting coordinated exercise of arm and trunk muscles. Cardiac condition was judged by the achieved peak heart rate (mean 125 +/- 3.8 beats per minute) and observed ECG abnormalities. In only three patients exercise-induced ECG abnormalities were found at peak workload. The mean peak workload was 52 +/- 1.9W. It was concluded from these results that the average physical and cardiac condition is poor in vascular leg amputees. In 34 patients (87%) the prosthetic training was successful. Fourteen patients needed a walking frame and twenty could walk without a walking frame. The probability of achieving walking without a walking frame was 70% in patients with peak workload above 45W and 30% in those with peak workload lower than 45W.
39名因外周血管疾病而腿部截肢的受试者，平均年龄72岁（范围52至89岁），在其假肢训练计划开始时进行了分级运动测试。在该计划结束时评估他们的步行表现，并与测试结果进行比较。他们有病史且进行了静息心电图（ECG）检查，结果显示75%的患者存在心脏问题。运动测试在专门设计的手臂测力计上进行，该测力计允许手臂和躯干肌肉进行协调运动。通过达到的峰值心率（平均每分钟125±3.8次心跳）和观察到的心电图异常来判断心脏状况。仅在三名患者中，在峰值工作量时发现了运动诱发的心电图异常。平均峰值工作量为52±1.9W。从这些结果得出结论，血管性腿部截肢患者的平均身体和心脏状况较差。34名患者（87%）的假肢训练取得成功。14名患者需要助行架，20名患者无需助行架即可行走。峰值工作量高于45W的患者无需助行架行走的概率为70%，而峰值工作量低于45W的患者这一概率为30%。
