نتایج جستجو برای: traction friction
تعداد نتایج: 44730 فیلتر نتایج به سال:
BACKGROUND Spinal pain syndromes are among the most frequent causes of ill health. Long-lasting sustained overload results in a critical decrease in the distance between neighbouring vertebrae and radiation of pain. The aim of this study was to assess the effect of cervical traction and the TENS method on the strength of painless grip and maximum strength of the arm flexors. MATERIAL AND METH...
BACKGROUND We present a case of a macular hole formation and its spontaneous closure after vitrectomy for vitreomacular traction. To our knowledge, it is the first description of spontaneous closure of the macular hole after vitrectomy for vitreomacular traction. CASE PRESENTATION A 78-year-old woman presented decreased visual acuity and metamorphopsia in the right eye due to vitreomacular tr...
Some aspects are illustrated of energy conversion processes during the operation of electric railway vehicles with traction induction motors, in order to support transport systems’ sustainability. Increasing efforts are being expended to enhance the sustainability of transportation technologies and systems. Since electric drive systems are used with variable voltage variable frequency (VVVF) in...
How focal adhesions (FAs) convert retrograde filamentous actin (F-actin) flow into traction stress on the extracellular matrix to drive cell migration is unknown. Using combined traction force and fluorescent speckle microscopy, we observed a robust biphasic relationship between F-actin speed and traction force. F-actin speed is inversely related to traction stress near the cell edge where FAs ...
The Problem: In 2010, over 20.3 million vehicles were recalled. Software issues related to automotive controls such as cruise control, anti-lock braking system, traction control and stability control, account for an increasingly large percentage of the overall vehicles recalled. There is a need for new and scalable methods to evaluate automotive controls in a realistic and open setting. We have...
OBJECTIVE To enable early prediction of strong traction force vacuum extraction. DESIGN Observational cohort. SETTING Karolinska University Hospital delivery ward, tertiary unit. POPULATION AND SAMPLE SIZE Term mid and low metal cup vacuum extraction deliveries June 2012-February 2015, n = 277. METHODS Traction forces during vacuum extraction were collected prospectively using an intell...
Traction-related problems are poorly described in the existing literature. The purpose of this prospective study was to describe traction-related problems and how patients perceive these problems. The study was a descriptive cohort study and data were collected from questionnaires and patient files. The questionnaire included questions on patients' perceptions of traction-related problems in th...
The objective of this study was to measure intradiscal pressure (IDP) changes in the lower cervical spine during a manual cervical distraction (MCD) procedure. Incisions were made anteriorly, and pressure transducers were inserted into each nucleus at lower cervical discs. Four skilled doctors of chiropractic (DCs) performed MCD procedure on nine specimens in prone position with contacts at C5 ...
BACKGROUND Preoperative skin traction is applied for many patients with hip fracture. However, the efficacy of this modality in pain relief is controversial. OBJECTIVES The aim of the current study was to investigate the effects of skin traction on pain in patients with intertrochanteric fractures. PATIENTS AND METHODS A total of 40 patients contributed in this randomized clinical trial. Pa...
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