Klein R G, Eek B C
Department of Medical Orthopedics, Sansum Medical Clinic, Santa Barbara, CA 93102.
Arch Phys Med Rehabil. 1990 Jan;71(1):34-7.
Twenty patients with chronic low back pain were enrolled in a randomized double-blind trial to test the efficacy of low-energy laser biostimulation combined with exercise. Ten patients received low-energy gallium-arsenide laser treatment, and ten received placebo laser treatment. Both groups were also placed on an active exercise program. Visual analogue and disability pain scores were assessed pretreatment and one month posttreatment and showed significant (p less than .02) improvements in both groups, but no relative advantage was found for either group. Objective parameters using computerized triaxial measurements of range of motion, isometric torque, and isodynamic velocity were also performed before and after treatment. There were significant improvements in objective parameters in both the laser and placebo groups, but no relative advantage accrued to either group. Under the conditions of this study, low-energy laser stimulation plus exercise did not provide a significant advantage over exercise alone.
20名慢性腰痛患者参与了一项随机双盲试验，以测试低能量激光生物刺激联合运动的疗效。10名患者接受低能量砷化镓激光治疗，10名患者接受安慰剂激光治疗。两组患者均进行积极的运动计划。在治疗前和治疗后1个月评估视觉模拟评分和残疾疼痛评分，结果显示两组均有显著改善（p小于0.02），但两组均未发现相对优势。在治疗前后还使用计算机化三轴测量运动范围、等长扭矩和等动力速度等客观参数。激光组和安慰剂组的客观参数均有显著改善，但两组均未获得相对优势。在本研究条件下，低能量激光刺激加运动并不比单纯运动具有显著优势。
