Lee K H, Gutierrez I, Smiehorowski T
Arch Phys Med Rehabil. 1980 Jun;61(6):265-9.
Use of the Pedalator instead of the treadmill in the assessment of occlusive arterial disease of the lower extremities has been evaluated. The following aspects were assessed: (1) The effect on the cardiovascular system in terms of brachial arterial pressure, pulse rate, and oxygen consumption (VO2) during exercise in 5 health volunteers; (2) emg activity of the tibialis anterior and gastrocnemius muscles during exercise in the same 5 volunteers; and (3) postexercise ankle pressure changes in 10 subjects with angiographically proven occlusive arterial diseases of the lower extremities. For comparable degrees of VO2, the changes in brachial arterial pressure and pulse rate were similar. However, the maximum workload and effect on the cardiovascular system with the Pedalator were self-limiting. The emg acticity of tibialis anterior and gastrocnemius muscles was greater with the Pedalator. Average exercise time required to produce calf pain was 5 minutes with the Pedalator and 2.8 minutes with the treadmill. When the systolic pressure indexes before and after exercise was compared in 3 groups of limbs (11 with complete, 8 with partial, and 1 with no occlusion), both forms of exercise produced a significant degree of reduction in the systolic pressure index in all limbs except the normal one. The Pedalator exercise was associated with less elevation of brachial arterial pressure. Therefore, the Pedalator should be used whenever the least elevation of brachial arterial pressure is desirable during the assessment of occlusive arterial disease.
已对使用脚踏式运动装置而非跑步机来评估下肢闭塞性动脉疾病进行了评价。评估了以下几个方面：（1）5名健康志愿者运动期间，就肱动脉血压、脉搏率和耗氧量（VO2）而言对心血管系统的影响；（2）同5名志愿者运动期间胫前肌和腓肠肌的肌电图活动；以及（3）10名经血管造影证实患有下肢闭塞性动脉疾病的受试者运动后踝部压力变化。对于相当程度的VO2，肱动脉血压和脉搏率的变化相似。然而，脚踏式运动装置的最大工作量及其对心血管系统的影响是自我限制的。使用脚踏式运动装置时，胫前肌和腓肠肌的肌电图活动更强。产生小腿疼痛所需的平均运动时间，使用脚踏式运动装置时为5分钟，使用跑步机时为2.8分钟。当比较3组肢体（11条完全闭塞、8条部分闭塞和1条无闭塞）运动前后的收缩压指数时，除正常肢体外，两种运动形式在所有肢体中均使收缩压指数显著降低。脚踏式运动装置运动与肱动脉血压升高较少有关。因此，在评估闭塞性动脉疾病时，只要希望肱动脉血压升高最少，就应使用脚踏式运动装置。
