Abstract: Objective To evaluate the effect of high-voltage electrostatic therapy on sleep disorder in the elderly. Methods 31 elderlycases (66~92 years ) with sleep disorder were treated with high-voltage electrostatic therapy for 10~15 d. They were assessed with PittsburghSleep Quality Index (PSQI) before and after the intervention. Results The global score and all the subscale scores of PSQI decreased(P<0.01) after intervention. Conclusion The high-voltage electrostatic therapy is effective on sleep quality.

Key words: high-voltage electrostatic therapy, sleep quality, elderly, Pittsburgh Sleep Quality Index