Levine S P, Kett R L, Gross M D, Wilson B A, Cederna P S, Juni J E
Rehabilitation Engineering Program, Department of PM&R; and Nuclear Medicine Division (Drs., University of Michigan Medical Center 48109-0032.
Arch Phys Med Rehabil. 1990 Aug;71(9):682-6.
Blood flow was measured under the ischial tuberosites of seated individuals during electrical stimulation of the gluteus maximus muscles. Eight able-bodied and six spinal cord injured subjects were studied. Muscle blood flow was measured via radioactive tracer (133xenon) clearance. Retention of xenon in adipose tissue prevented accurate measurement of blood flow in cutaneous and subcutaneous tissue. Average muscle blood flow for both subject groups was increased during stimulation as compared to rest. All subjects showed an increase in muscle blood flow during stimulation. The statistical significance from a paired student t-test was greater for able-bodied subjects (p less than .05) than for spinal cord injured subjects (p = .12). The increase in muscle blood flow produced by electrical muscle stimulation in seated individuals supports the hypothesis that electrical muscle stimulation can help prevent pressure sores.
在对臀大肌进行电刺激时，测量了坐位个体坐骨结节下方的血流情况。研究了8名身体健全的受试者和6名脊髓损伤受试者。通过放射性示踪剂（133氙）清除率来测量肌肉血流。氙在脂肪组织中的滞留妨碍了对皮肤和皮下组织血流的准确测量。与休息时相比，两个受试者组在刺激期间的平均肌肉血流均增加。所有受试者在刺激期间肌肉血流均增加。配对学生t检验的统计学显著性在身体健全的受试者中（p小于0.05）大于脊髓损伤受试者（p = 0.12）。坐位个体中肌肉电刺激所产生的肌肉血流增加支持了肌肉电刺激有助于预防压疮的假说。
