1. The use of the self;Alexander,1932
2. Aston postural assessment workbook;Aston,1998
3. The effects of wobble board exercised training program on static balance performance and strength of lower extremity muscles;Balogun;Physiother Can,1992
4. Stability of the lumbar spine: a study in mechanical engineering;Bergmark;Acta Orthop Scand,1989
5. Clinical anatomy of the lumbar spine and sacrum;Bogduk,2005