Bibliografia

• Caufriez M. Gymnastique Abdominale Hypopressive. M.C. Editions, collection Maïte 1999.

• Latimer J , Maher CG , Refshauge K , Colaco I . The reliability and validity of the Biering-SØrensen test in asymptomatic subjects and subjects reporting current or previous nonspecific low back pain. Spine 1999; 24: 2085-9.