Comparing lower lumbar kinematics in cyclists with low back pain (flexion pattern) versus asymptomatic controls – field study using a wireless posture monitoring system

2012 ◽  
Vol 17 (4) ◽  
pp. 312-317 ◽  
Author(s):  
Wannes Van Hoof ◽  
Koen Volkaerts ◽  
Kieran O'Sullivan ◽  
Sabine Verschueren ◽  
Wim Dankaerts
2021 ◽  
Vol 2115 (1) ◽  
pp. 012048
Author(s):  
A Chaitanya Kumar ◽  
V G Sridhar

Abstract Instances of low-back pain in people of all ages is one of the most common issues in the world. Over 50% of the world population report of being affected by low-back pain at least once a year. It is therefore of paramount importance for individuals to realize the necessity and importance of a proper sitting posture, to interact and work in an ergonomically supportive environment. With the advent of the Internet of Things, it is now evident that communication technology coupled with the mechanics of the seating device can help produce meaningful insights, and help in undertaking data-driven decisions. There have been various attempts at designing “smart chairs”. These smart chairs in addition to the above mentioned functionalities, can also be deployed as robust health-monitoring systems. Using embedded sensors within, these chairs can function as an alert mechanism to the user, when he/she is sitting with an incorrect posture, that could be detrimental to the physical health of the individual. In this paper, the researchers conduct a comprehensive analysis of the existing products, by a customer survey and propose a solution that could potentially serve the people with back pain to use the proposed chair: embedded with sensors, and supplemented by data analytics. The system designed is a cost-effective low-power consuming posture monitoring system, that simultaneously works as an accurate health monitoring system as well.


2016 ◽  
Vol 12 (2) ◽  
pp. 59-62 ◽  
Author(s):  
Dan B Karki ◽  
Om B Panta ◽  
Ghanshyam Gurung

Non-degenerative pathoanatomical changes are far less common than degenerative changes but benefi ts most from imaging assessment. This study aimed to evaluate the non-degenerative pathoanatomical changes in patients undergoing MRI for low back pain.The study was a retrospective study conducted for the duration of 3 years in a multimodality-imaging center. All patients undergoing MRI of lumbosacral spine with complains of low back pain with or without radiculopathy were assessed for morphological changes and other abnormal fi ndings. After excluding patients with degenerative changes, non-degenerative pathologies were evaluated. Data was entered in predesigned proforma and analysis was done with SPSS 21.0.There were 183 patients who met the inclusion criteria and were included in the study. The mean age of the patients was 51.23 ±16.86 years. Compression fracture of the vertebra was the most common non-degenerative changes accounting for 34% cases followed by spinal meningeal cysts (26%) and infection (14%). Fractures were more common in upper lumbar level as compared to lower lumbar levels. Meningeal cysts were noted to involve the sacral spinal canal more frequently followed by lower lumbar levels. Infective lesions were equally distributed throughout the lumbar spine. Hemangioma was common lesion involving 16% of cases. Lumbosacral transitional vertebra was seen in 7(3.8%) patients.The common non-degenerative pathoanatomical changes associated with low back pain were traumatic lesion, infection, neoplastic lesion and lumbosacral transitional vertebra.Nepal Journal of Neuroscience 12:59-62, 2015


Ergonomics ◽  
2014 ◽  
Vol 58 (2) ◽  
pp. 246-258 ◽  
Author(s):  
Morten Villumsen ◽  
Afshin Samani ◽  
Marie Birk Jørgensen ◽  
Nidhi Gupta ◽  
Pascal Madeleine ◽  
...  

PLoS ONE ◽  
2017 ◽  
Vol 12 (4) ◽  
pp. e0175126 ◽  
Author(s):  
Romain Balaguier ◽  
Pascal Madeleine ◽  
Kévin Rose-Dulcina ◽  
Nicolas Vuillerme

Author(s):  
Ge Wu ◽  
Yu Liu ◽  
Wen Wen ◽  
Yang Zhang ◽  
Ruoliang Tang ◽  
...  

Sagittal morphological dimensions of the human lower lumbar structures are critical inputs for the comprehensive biomechanical modeling of spinal motions and the risk assessment of work-related low back pain. In this new quantitative exploration of sagittal morphology across the lower lumbar region (i.e., from L3/L4 to L5/S1), intervertebral disc (IVD) height, vertebral body (VB) height, endplate concavity was measured from two samples of subjects, including 1) archived medical records (AMR) collected from 57 patients and 2) 43 asymptomatic subjects with no history of low back pain (ASYM), independently by four individuals on a monthly basis. First, the current study achieved good inter- and intra-rater reliabilities. In addition, the current results also revealed that AMR sample had greater anterior-to-posterior vertebral body height ratio in vertebra L3 and L5. On the other hand, ASYM sample had significantly greater endplate concavity.


2016 ◽  
Vol 42 (2) ◽  
pp. 125-134 ◽  
Author(s):  
Morten Villumsen ◽  
Andreas Holtermann ◽  
Afshin Samani ◽  
Pascal Madeleine ◽  
Marie Birk Jørgensen

1986 ◽  
Vol 42 (3) ◽  
pp. 85-90
Author(s):  
R. S. Bridger ◽  
G. G. Jaros

A number of authors have suggested that office chairs designed to encourage users to sit with an "open" trunk-thigh angle (approximately 110-120 degrees) will be more comfortable than conventional chairs and will have beneficial consequences for sedentary low back pain sufferers.This assertion was investigated in a 4 month trial in which 35 sedentary workers were given a forward sloping chair to use. Ratings of perceived back pain and postural comfort when using the chair were compared with ratings obtained when conventional chairs were used. Additionally, users' comments on both chair types were obtained.For the sample as a whole, significantly less lower back pain was reported on those occasions when the forward sloping chair was used. However, a number of participants reported no change or more back pain when using the forward sloping chair. Users’ comments on the chair highlighted a number of practical advantages and disadvantages which relate to its suitability for use in office settings.Although the majority of users preferred the forward sloping chair to their usual chairs, the available data do not permit the differential response to the chair to be explained on either personal, occupational, anthropometric or ergonomic grounds. A more clinically orientated investigation would seem to be required.


2020 ◽  
Vol 73 ◽  
pp. 78-85
Author(s):  
Sadia Ilahi ◽  
Alfonse T. Masi ◽  
Allison White ◽  
Amanda Devos ◽  
Jacqueline Henderson ◽  
...  

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