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BACKGROUND AND PURPOSE Psychosocial factors are known to affect recovery from acute low back pain. The factors with the greatest influence and the optimal methods of measurement and interpretation have not been established. The purpose of this study was to examine baseline psychosocial variables and their ability to predict prolonged work restrictions. (More)
STUDY DESIGN Repeated measures design to examine reliability and longitudinal variation of lumbar lordosis measurement. OBJECTIVES To determine the interrater reliability, minimum detectable change (MDC) and longitudinal variation of the Cobb method for measuring lumbar lordosis using standardized rules. SUMMARY OF BACKGROUND DATA The reliability of the(More)
STUDY DESIGN A prospective, consecutive, cohort study of patients with acute low back pain classified into subgroups based on examination data and treated with a specific treatment approach. OBJECTIVE To calculated the interrater reliability of a classification system, and to compare initial patient characteristics and outcomes of physical therapy(More)
Previous studies of the Fear-Avoidance Model of Exaggerated Pain Perception have commonly included patients with chronic low back pain, making it difficult to determine which psychological factors led to the development of an "exaggerated pain perception". This study investigated the validity of the Fear-Avoidance Model of Exaggerated Pain Perception by(More)
BACKGROUND There are few effective strategies reported for the primary prevention of low back pain (LBP). Core stabilization exercises targeting the deep abdominal and trunk musculature and psychosocial education programs addressing patient beliefs and coping styles represent the current best evidence for secondary prevention of low back pain. However,(More)
UNLABELLED Previous studies have consistently suggested that there are sex differences in pain report, but there is no consensus regarding sex differences in the associations among psychological factors and pain report. This cross-sectional study used a novel, clinically relevant, psychophysical pain-induction technique to examine sex differences between(More)
STUDY DESIGN Validity and test-retest reliability of questionnaires related to the fear-avoidance model (FAM). OBJECTIVE To investigate test-retest reliability, construct redundancy, and criterion validity for 4 commonly used FAM measures. BACKGROUND Few studies have reported psychometric properties for more than 2 FAM measures within the same cohort,(More)
STUDY DESIGN Cross-sectional cohort. OBJECTIVES (1) To examine differences in clinical variables (demographics, knee impairments, and self-report measures) between those who return to preinjury level of sports participation and those who do not at 1 year following anterior cruciate ligament reconstruction, (2) to determine the factors most strongly(More)
Fear-avoidance beliefs have been identified as an important psychosocial variable in patients with chronic disability doe to low back pain. The importance of fear-avoidance beliefs for individuals with acute low back pain has not been explored. Seventy-eight subjects with work-related low back pain of less than 3 weeks'duration were studied. Measurements of(More)
UNLABELLED Biologic and psychological associations with evoked pain sensitivity have been extensively studied in healthy subjects but not among subjects with clinical pain syndromes. This study involved patients with chronic low back pain and investigated whether: 1) sex differences existed for thermal pain sensitivity; and 2) sex, fear-avoidance beliefs,(More)