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OBJECTIVE To examine the effect of a comprehensive warm-up programme designed to reduce the risk of injuries in female youth football. DESIGN Cluster randomised controlled trial with clubs as the unit of randomisation. SETTING 125 football clubs from the south, east, and middle of Norway (65 clusters in the intervention group; 60 in the control group)(More)
Videos of sports injuries can potentially provide valuable information on non-contact ACL injuries. However, only the un-validated simple visual inspection approach has, so far, been used. Therefore, the purpose of this study was to test the accuracy and precision of researchers in estimating kinematics from video sequences of situations that typically lead(More)
The incidence of noncontact anterior cruciate ligament injuries in young to middle-aged athletes remains high. Despite early diagnosis and appropriate operative and nonoperative treatments, posttraumatic degenerative arthritis may develop. In a meeting in Atlanta, Georgia (January 2005), sponsored by the American Orthopaedic Society for Sports Medicine, a(More)
BACKGROUND Cross-sectional studies have indicated that neurocognitive performance may be impaired among football players. Heading the ball has been suggested as the cause, but recent reviews state that the reported deficits are more likely to be the result of head injuries. OBJECTIVE To examine the association between previous concussions and heading(More)
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In many situations, e.g. sports injuries, three-dimensional kinematics cannot be obtained with traditional lab methods. However, if methods for reconstructing motion patterns from video sequences were available, our understanding of injury mechanisms could be improved. The aim of this study was to assess the accuracy of a new model-based image-matching(More)
Tendinopathy, pain, and degeneration, may be related to the up-regulation of substance P (SP) and its activation of glutamate receptors. We hypothesized that the pathogenesis of tendinopathy involves N-methyl-D-aspartate receptor type 1 (NMDAR1) activation (phosphorylated NMDAR1; phospho-NMDAR1) co-existing with SP. Moreover, we examined the presence of(More)
Elevated levels of the neurotransmitter glutamate and the presence of its receptor, N-methyl-d-aspartate receptor type 1 (NMDAR1), have been established in patients with tendinopathy, i.e. chronic tendon pain and degeneration. However, whether NMDAR1 is up- or down-regulated in tendinopathy and co-localized with glutamate is still unexplored. We hypothesize(More)
Preganglionic visceral vasoconstrictor (VVC) neurons and motility-regulating (MR) neurons and other visceral preganglionic neurons, which project in the lumbar splanchnic nerves, were analyzed for their segmental distribution, the conduction velocity of their axons, ongoing activity and reflexes elicited by electrical stimulation of visceral afferents in(More)
Lumbar preganglionic neurons, which projected in the lumbar splanchnic nerves and were probably involved in regulating motility of colon and pelvic organs (motility-regulating, MR neurons), were analyzed for their discharge patterns. The responses of the neurons to the following stimuli were tested: stimulation of arterial baro- and chemoreceptors and of(More)