【摘要】 目的探讨自动拍背对卧床者背部肌电活性的促进作用,并评估效果,探讨该法的最佳方案。方法以背阔肌为背部肌电活性状况的代表区域,测量其体表肌电图的积分值作为评估的生理指标。38例受测者安静卧床9min后,自动拍背18min,观测其背部浅层肌肉之电性活动(EMG积分值)。结果各受测者自动拍背3￣4min后,其EMG积分值由安静卧床的基础值(120±15)mV·s提升至(290±45)mV·s并趋于稳定;此外受测者在拍背6min时,EMG达到最大的促进效益。方差分析结果F=2985.00,P<0.01。结论自动拍背可促进背部肌肉之电性活动,改善血液循环,自动拍背时间以6min为最佳。更多还原

【Abstract】 Objective To explore the stimulative effect of automatic backslap on myoelectric activity of bedridden patients and to evaluate the effect to find o ut the best plan of automatic backslap. Methods Patients’ back broadest muscle as the representative field of back’s myoelectric activity, the integral of its surface electromyogram was measured to be the physiological index. Nine minutes after 38 patients lie in bed quietly, all the patients were backslapped for 18 minutes to observe the myoelectric activity of surface muscle of patients’ back (EMG integral). Results Three to four minutes after automatic backslap, EMG in tegral of every patient increased from the basic index of quiet bedridden, (120 ±15)mV·s to (290±45)mV·s and tended to be steady. In additional, when the pa tients were backslapped at the sixth minute, EMG reached to the highest stimulat ive effect. The results of analysis of variance is F=2 985.00, P<0.01. Conclusio n Automatic backslap is the best way to prevent bedsore and muscle atrophy bec ause it can improve the activity of back’s EMG and blood circulation. Six minute s is the best duration of automatic backslap.更多还原