Lim Einly, Lim Renly, Suhaimi Anwar, Chan Bee Ting, Wahab Ahmad Khairi Abdul
Department of Biomedical Engineering, Faculty of Engineering, University Malaya, Kuala Lumpur, Malaysia.
Quality Use of Medicines and Pharmacy Research Centre, School of Pharmacy and Medical Sciences, University of South Australia, Adelaide, Australia.
J Back Musculoskelet Rehabil. 2018;31(6):1041-1047. doi: 10.3233/BMR-171042.
Low frequency sound wave stimulation therapy has become increasingly popular in the rehabilitation fields, due to its ease, less fatiguing and time efficient application.
This 12-week pilot study examines the efficacy of applying low frequency sound wave stimulation (between 16-160 Hz) through both hands and feet on relieving pain and improving functional ability in patients with chronic back pain.
Twenty-three participants with chronic shoulder (eleven participants) or low back pain (twelve participants) underwent a 12-week vibration therapy program of three sessions per week. A low frequency sound wave device comprising four piezoelectric vibration-type tactile tranducers enclosed in separate 5-cm diameter circular plates, which generate sinusoidal vibratory stimuli at a frequency of 16-160 Hz, was used in this study. Primary outcome measure was pain sensation measured using the Visual Analogue Scale (P-VAS). The secondary outcome measures were pain-related disability measured using the pain disability index (PDI) and quality of life measured using the SF-12.
At week 12, significant reductions in pain sensation and pain-related disability were observed, with mean reductions of 3.5 points in P-VAS and 13.5 points in the PDI scores. Sixty-five percent of the participants had a reduction of at least 3 points on the P-VAS score, while 52% participants showed a decrease of at least 10 points in the PDI score. Significant improvement was observed in the SF-12 physical composite score but not the mental composite score.
The preliminary findings showed that passive application of low frequency sound wave stimulation therapy through both hands and feet was effective in alleviating pain and improving functional ability in patients with chronic back pain.
由于低频声波刺激疗法操作简便、不易疲劳且省时高效，该疗法在康复领域越来越受欢迎。
这项为期12周的初步研究旨在探讨通过双手和双脚施加低频声波刺激（16 - 160赫兹）对缓解慢性背痛患者疼痛及改善其功能能力的疗效。
23名患有慢性肩部疼痛（11名参与者）或下背部疼痛（12名参与者）的患者接受了为期12周的振动治疗方案，每周进行三次治疗。本研究使用了一种低频声波设备，该设备由四个压电振动型触觉换能器组成，封装在直径为5厘米的单独圆形板中，可产生频率为16 - 160赫兹的正弦振动刺激。主要结局指标是使用视觉模拟量表（P - VAS）测量的疼痛感觉。次要结局指标是使用疼痛残疾指数（PDI）测量的与疼痛相关的残疾以及使用SF - 12测量的生活质量。
在第12周时，观察到疼痛感觉和与疼痛相关的残疾显著降低，P - VAS平均降低3.5分，PDI评分平均降低13.5分。65%的参与者P - VAS评分至少降低了3分，而52%的参与者PDI评分至少降低了10分。SF - 12身体综合评分有显著改善，但心理综合评分未改善。
初步研究结果表明，通过双手和双脚被动施加低频声波刺激疗法对缓解慢性背痛患者的疼痛和改善其功能能力有效。
