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To the Editor:
—In The Journal OF THE American Medical Association, July 28, 1951, page 1179, there appeared an article by Dr. Harvey E. Billig Jr., of Los Angeles, entitled "The Specialist Looks at Everyday Medical Care in Industry: Orthopedics." In this he states: "Chronic posture habit results in shortening of the fascial ligamentous fibrous structures to accommodate the posture maintained. When this is occupational, and when the occupational posture habit becomes the chronic posture habit, the gradually ensuing contractural stiffness results in not only a poor posture habit but symptoms as well. The management of a telephone company noticed a huge prevalence of backache, dysmenorrhea, and occipitocervical headaches radiating to the temporal region among the thousands of girls seated with forward thrust of head and neck at switchboards. Examination revealed a contracture of the ligaments in the cervical region and in the lower back region, radiating to the anterior
Manson MH. ORTHOPEDICS AND INDUSTRY. JAMA. 1951;147(3):274–275. doi:10.1001/jama.1951.03670200066026
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