Original ArticlesA Preliminary Report on the Effect of Measured Strength Training in Adolescent Idiopathic ScoliosisMooney, Vert; Gulick, Jennifer*; Pozos, Robert† Author Information U.S. Spine and Sport Center, *World Wide Clinical Trials, and †San Diego State University, San Diego, California, U.S.A. Received June 9, 1999; accepted September 27, 1999. Address correspondence and reprint requests to Dr. V. Mooney, U.S. Spine and Sport Center, 3444 Kearny Villa Rd. #205, San Diego, CA 92123, U.S.A. Jennifer Gulick is currently at UCSD Orthomed Center, San Diego, CA. Journal of Spinal Disorders: April 2000 - Volume 13 - Issue 2 - p 102-107 Buy Abstract The authors studied 12 adolescent patients with scoliosis (10 girls and 2 boys) who were 11 to 16 years old and had curvatures ranging from 20° to 60°. Seven were right thoracic curves and five were thoracolumbar with double curves. When tested on the MedX Torso Rotation Machine, both sides were unequal in their torso rotation strength all patients. Myoelectric activity was asymmetric in both sides and in abdominal and paraspinal muscles of all patients. These asymmetries were corrected completely with torso rotation, which was associated with significant strength gains. Strength gains ranged from 12% to 40%. A 16-year-old girl with a 60° lumbar curve progressed and had surgery. None of the remaining patients progressed, and 4 of the 12 had decreases in their curvatures from 20° to 28°. None of the patients used braces during this study. © 2000 Lippincott Williams & Wilkins, Inc.