Correlation between the percentage of ODI and %MVC of EO muscle.

Notes: ODI—Oswestry Disability Index; MVC—maximal isometric voluntary contraction; EO—external oblique muscles.备注：ODI即Oswestry功能障碍指数（Oswestry Disability Index）；MVC即最大等长自主收缩（maximal isometric voluntary contraction）；EO即腹外斜肌（external oblique muscles）。