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OBJECTIVE The purpose of this study was 2-fold: (1) to analyze the degree and the location of lumbar multifidus asymmetry among patients scheduled for L4-L5 microdiscectomy, and (2) to determine the amount of asymmetry recognizable by a radiologist on magnetic resonance imaging. DESIGN Bilateral multifidi cross-sectional areas were measured on magnetic(More)
We hypothesized that N-methyl-d-aspartate (NMDA) receptors mediate some or all of the capacity of inhaled anesthetics to prevent movement in the face of noxious stimulation, and that this capacity to prevent movement correlates directly with the in vitro capacity of such anesthetics to block the NMDA receptor. To test this hypothesis, we measured the effect(More)
PURPOSE Hip muscle weakness has been associated with altered lower extremity mechanics and the increased likelihood of receiving treatment for low back problems, although biomechanical injury mechanisms focused on the trunk have not been investigated. The purpose of this study was to compare lumbopelvic kinematic variables and muscle activation of the trunk(More)
In this study, we investigated trunk coordination during rate-controlled bipedal vertical dance jumps. The aims of the study were to investigate the pattern of coordination and the magnitude of coordination variability within jump phases and relative to phase-defining events during the jump. Lumbar and thoracic kinematics were collected from seven dancers(More)
STUDY DESIGN Controlled laboratory study using a cross-sectional design. OBJECTIVES To characterize ankle and hip muscle performance in women with posterior tibial tendon dysfunction (PTTD) and compare them to matched controls. We hypothesized that ankle plantar flexor strength, and hip extensor and abductor strength and endurance, would be diminished in(More)
BACKGROUND Low back pain remains a costly quality-of-life-related health problem. Microdiscectomy is often the surgical procedure of choice for a symptomatic, single-level, lumbar disc herniation in younger and middle-aged adults. The question of whether a post-microdiscectomy exercise program enhances function, quality of life, and disability status has(More)
RATIONALE Pay-for-performance is a model for health care financing that seeks to link reimbursement to quality. The American Thoracic Society and its members have a significant stake in the development of pay-for-performance programs. OBJECTIVES To develop an official ATS policy statement addressing the role of pay-for-performance in pulmonary, critical(More)
Somatizing patients present a history of vague, unexplained medical symptoms. This study compared somatizing patients with pulmonary control subjects by using the Diagnostic Interview Schedule (DIS-III-R), the Illness Attitude Scales (IAS), and the Minnesota Multiphasic Personality Inventory (MMPI-2). The groups differed in the number of somatization(More)
STUDY DESIGN Controlled laboratory study using a cross-sectional design. OBJECTIVES To analyze lower extremity kinematics during takeoff of a "saut de chat" (leap) in dancers with and without a history of Achilles tendinopathy (AT). We hypothesized that dancers with AT would demonstrate different kinematic strategies compared to dancers without pathology,(More)
Aesthetic constraints allow dancers fewer technique modifications than other athletes to negotiate the demands of leaping. We examined vertical ground reaction force and knee mechanics during a saut de chat performed by healthy dancers. It was hypothesized that vertical ground reaction force during landing would exceed that of take-off, resulting in greater(More)