BACKGROUND AND PURPOSE Neck flexor muscle endurance has been negatively correlated with cervical pain and dysfunction. The purposes of this study were to determine rater reliability in subjects both with and without neck pain and to determine whether there was a difference in neck flexor muscle endurance between the 2 groups. SUBJECTS Forty-one subjects with and without neck pain were enrolle...

OBJECTIVE To determine whether stature recovery and paraspinal muscle activity can be altered in individuals with and without chronic low-back pain by assuming different unloading positions. DESIGN A case-control study considering the effects of unloading position on stature recovery in individuals with and without chronic low-back pain. BACKGROUND Stature recovery has been documented to be...

Low back pain (LBP) prevalence in children and adolescents is high during their lives. School-based interventions have reported effectiveness on health. The study aimed to determine the effect of an educational back-health intervention knowledge, postural habits trunk muscle endurance regarding low prevention for a group 12 13-year-old students using 6-month follow-up. A non-randomized experime...

INTRODUCTION To systematically review the relationship between low pH in intervertebral discs and low back pain. MATERIAL AND METHODS Electronic database (PubMed, ISI Web of Science, Cochrane Library, CINAHL, AMED, and China National Knowledge Infrastructure) searches and hand searching of conference proceedings were conducted. Two authors independently evaluated the methodological quality an...

QUESTIONS Are there any differences in the displacement and endurance of an elevating voluntary pelvic floor muscle contraction in standing and in crook-lying? Are there any differences in these variables between males and females in either test position? DESIGN An experimental study. PARTICIPANTS Forty-five nulliparous female and 20 male participants aged 23 years (SD 3) with no symptoms o...

BACKGROUND Despite the high prevalence and cost of neck-pain problems, there is currently little data available on the physical characteristics associated with different levels of neck pain. OBJECTIVE To investigate associations between categories of response to neck pain/discomfort and (1) the endurance time of neck muscles, neck range of motion (ROM), and neck and head morphology, (2) sensi...