The effect of surface electric stimulation of the gluteal muscles on the interface pressure in seated people with spinal cord injury.

摘要

OBJECTIVE: To study effects of surface electric stimulation of the gluteal muscles on the interface pressure in seated persons with spinal cord injury (SCI). DESIGN: One session in which alternating and simultaneous surface electric stimulation protocols were applied in random order. SETTING: Research laboratory of a rehabilitation center. PARTICIPANTS: Thirteen subjects with SCI. INTERVENTION: Surface electric stimulation of the gluteal muscles. MAIN OUTCOME MEASURES: Interface pressure, maximum pressure, pressure spread, and pressure gradient for the stimulation measurement. Variables were compared using 2-tailed paired t tests. RESULTS: Alternating and simultaneous stimulation protocol caused a significant (P<.01) decrease in interface pressure (-17+/-12 mmHg, -19+/-14 mmHg) and pressure gradient (-12+/-11 mmHg, -14+/-12 mmHg) during stimulation periods compared with rest periods. There was no significant difference in effects between the 2 protocols. CONCLUSIONS: Surface electric stimulation of thegluteal muscles in persons with SCI causes a decrease in interface pressure. This might restore blood flow in compressed tissue and help prevent pressure ulcers.