Reliability of the chin tuck neck flexion test for assessing endurance of short neck flexors in healthy individuals.

Objectives: The aim of the study was to examine of the intra-rater reliability of the chin tuck neck flexion (CTNF) test for assessing the endurance of neck flexors.

Materials And Methods: The study was performed at the Cardiorespiratory laboratory of the Physiotherapy Department, School of Health and Caring Professions, TEI Lamia, Greece. Twenty healthy volunteers (males/females: 9/11, age: 22.

Subclassification of low back pain: a cross-country comparison.

Various health professionals have attempted to classify low back pain (LBP) subgroups and have developed several LBP classification systems. Knowing that culture has an effect on LBP symptomatology, assessment findings and clinical decision making, the aim of this review is to perform a cross-country comparative review amongst the published classification systems, addressing each country's similarities and differences as well as exploring whether cultural factors have been incorporated into the subclassification process. A systematic search of databases limited to human adults was undertaken by Medline, Cinahl, AMED and PEDro databases between January 1980 and October 2005.