Parkkola R, Rytökoski U, Kormano M
Department of Diagnostic Radiology, University Hospital of Turku, Finland.
Spine (Phila Pa 1976). 1993 Jun 1;18(7):830-6. doi: 10.1097/00007632-199306000-00004.
This study aimed to evaluate the lumbar intervertebral discs and the maximum isometric strength and size of the trunk muscles of middle-aged healthy volunteers (60 persons) and low back pain patients (48 persons). Disc degeneration was more frequently seen in the patients than in the healthy volunteers. The psoas and back muscles (erector spinae and multifidus) of the patients were smaller than those of the volunteers. Patients had also more fat deposits in the back muscles than controls. The maximum isometric strength of trunk muscles of the patients was on average weaker than that of the volunteers. However, the size of the back muscles was not related to the maximum isometric extension strength of the trunk.
本研究旨在评估中年健康志愿者（60人）和腰痛患者（48人）的腰椎间盘以及躯干肌肉的最大等长肌力和尺寸。与健康志愿者相比，患者中椎间盘退变更为常见。患者的腰大肌和背部肌肉（竖脊肌和多裂肌）比志愿者的小。患者背部肌肉中的脂肪沉积也比对照组多。患者躯干肌肉的最大等长肌力平均比志愿者弱。然而，背部肌肉的尺寸与躯干的最大等长伸展力无关。
