Selected static foot assessments do not predict medial longitudinal arch motion during running

Background: Static assessments of the foot are commonly advocated within the running community to classify the foot with a view to recommending the appropriate type of running shoe. The aim of this work was to determine whether selected static foot assessment could predict medial longitudinal arch (MLA) motion during running. Methods: Fifteen physically active males (27 ± 5 years, 1.77 ± 0.04m, 80 ± 10kg) participated in the study. Foot Posture Index (FPI-6), MLA angle and rearfoot angle were measured in a relaxed standing position. MLA motion was calculated using the position of retro-reflective markers tracked by a VICON motion analysis system, while participants ran barefoot on a treadmill at a self-selected pace (2.8 ± 0.5m.s-1). Bivariate linear regression was used to determine whether the static measures predicted MLA deformation and MLA angles at initial contact, midsupport and toe off. Results: All three foot classification measures were significant predictors of MLA angle at initial contact, midsupport and toe off (p < .05) explaining 41-90% of the variance. None of the static foot classification measures were significant predictors of MLA deformation during the stance phase of running. Conclusion: Selected static foot measures did not predict dynamic MLA deformation during running. Given that MLA deformation has theoretically been linked to running injuries, the clinical relevance of predicting MLA angle at discrete time points during the stance phase of running is questioned. These findings also question the validity of the selected static foot classification measures when looking to characterise the foot during running. This indicates that alternative means of assessing the foot to inform footwear selection are required

Canadian C-spine rule and the National Emergency X-Radiography Utilization Study (NEXUS) for detecting clinically important cervical spine injury following blunt trauma

© 2018 The Cochrane Collaboration. This is a protocol for a Cochrane Review (Diagnostic test accuracy). The objectives are as follows: To describe and compare the diagnostic accuracy of the Canadian C-spine rule and the National Emergency X-Radiography Utilization Study (NEXUS) to screen for clinically important cervical spine injury (CSI) in patients following blunt trauma

Three in Every 10 School-aged Children in Brazil Report Back Pain in Any Given Year: 12-Month Prospective Cohort Study of Prevalence, Incidence, and Prognosis.

OBJECTIVE: To estimate the prevalence, incidence, and prognosis of back pain in children and adolescents. DESIGN: Prospective cohort study. METHODS: We followed children and adolescents between the ages of 8 and 18 years with and without back pain over 12 months (3, 6, and 12 months) from public and private schools. At baseline, parents (or guardians) answered questionnaires including sociodemographic characteristics and perception of sleep quality of their children and adolescents. Children and adolescents answered questionnaires including sociodemographic characteristics, presence of back pain, pain intensity, quality of life, and psychosomatic symptoms. At follow-up, children and adolescents answered questions about the presence of back pain. RESULTS: Six hundred fifteen children and adolescents were included, 163 of whom had back pain and 452 of whom had no back pain at baseline. The mean age of participants was 11.6 years (SD = 2.5), and the majority were female (n = 362; 59%). The 1-month prevalence of back pain was 26% (95% confidence interval: 23%-30%). The incidence rate of back pain was 35% (31%-40%) over 12 months. Of the 163 participants who had back pain at baseline, 83% had recovered by 12 months. Of those who recovered within 6 months, 31% had a recurrence of back pain at the 12-month follow-up. CONCLUSION: Two to 3 in every 10 children and adolescents reported back pain in the last month. New cases of back pain were reported by 3-4 in every 10 children and adolescents for a period of 12 months. Nearly all children recover within 12 months, but recurrence seems to be common. J Orthop Sports Phys Ther 2022;52(8):554-562. Epub: 19 June 2022. doi:10.2519/jospt.2022.10819