Langbein W E, Maki K C, Edwards L C, Hwang M H, Sibley P, Fehr L
Rehabilitation Research and Development Center, Edward Hines Jr. VA Hospital, Hines, IL 60141.
J Rehabil Res Dev. 1994 Nov;31(4):317-25.
The purpose of this initial study was to evaluate a new wheelchair ergometer (WCE) and exercise test protocol for the detection of coronary artery disease in men with lower limb disabilities. Forty-nine patients (63 +/- 9 yr) completed WCE tests without complications. Peak heart rate was 84 +/- 15% (mean +/- SD) of age-predicted maximum and peak double product was 223 +/- 62 x 10(2). The specified target heart rate (> or = 80% age-predicted maximal) or a positive result was achieved in 76% of tests. Fourteen tests were rated positive, 21 as negative and 14 as nondiagnostic for exercise-induced ischemia. In 18 patients who underwent coronary angiography, the predictive value was 100% (10/10) for a positive, and 50% (2/4) for a negative WCE test result. These results suggest that WCE is a viable initial diagnostic option for some persons who cannot adequately perform treadmill or cycle ergometry exercise.
这项初步研究的目的是评估一种新型轮椅测力计（WCE）及运动测试方案，用于检测下肢残疾男性的冠状动脉疾病。49名患者（63±9岁）完成了WCE测试，无并发症发生。峰值心率为年龄预测最大值的84±15%（平均值±标准差），峰值双重乘积为223±62×10²。76%的测试达到了指定的目标心率（≥年龄预测最大值的80%）或呈阳性结果。14次测试被评定为阳性，21次为阴性，14次对运动诱发的缺血无诊断意义。在18名接受冠状动脉造影的患者中，WCE测试结果阳性的预测价值为100%（10/10），阴性的预测价值为50%（2/4）。这些结果表明，对于一些无法充分进行跑步机或自行车测力计运动的人来说，WCE是一种可行的初步诊断选择。
