نتایج جستجو برای: lifting

تعداد نتایج: 12466  

2014
P Paul FM Kuijer Jos HAM Verbeek Bart Visser Leo AM Elders Nico Van Roden Marion ER Van den Wittenboer Marian Lebbink Alex Burdorf Carel TJ Hulshof

We developed an evidence-based practice guideline to support occupational safety and health (OSH) professionals in assessing the risk due to lifting and in selecting effective preventive measures for low back pain (LBP) in the Netherlands. The guideline was developed at the request of the Dutch government by a project team of experts and OSH professionals in lifting and work-related LBP. The re...

2013
Kasey O. Greenland Andrew S. Merryweather Donald S. Bloswick

BACKGROUND To determine the influence of lifting speed and type on peak and cumulative back compressive force (BCF) and shoulder moment (SM) loads during symmetric lifting. Another aim of the study was to compare static and dynamic lifting models. METHODS Ten male participants performed a floor-to-shoulder, floor-to-waist, and waist-to-shoulder lift at three different speeds [slow (0.34 m/s),...

Journal: :Journal of biomechanics 2015
A E Riley T D Craig N K Sharma S A Billinger S E Wilson

As torso flexion and repetitive lifting are known risk factors for low back pain and injury, it is important to investigate lifting techniques that might reduce injury during repetitive lifting. By normalizing lumbar posture to a subject's range of motion (ROM), as a function of torso flexion, this research examined when subjects approached their range of motion limits during dynamic lifting ta...

2015
Jiahong Song Xingda Qu Chun-Hsien Chen

Falls are a leading cause of occupational injuries and fatalities. A substantial proportion of occupational falls results from loss of postural stability. Load lifting perturbs postural stability, and thus is often associated with an increased incidence of falls. Although aged people are at higher fall risks, few studies have examined age effects on postural stability during lifting. Therefore,...

Journal: :CoRR 2011
Yuxin Deng Wenjie Du

Many behavioural equivalences or preorders for probabilistic processes involve a lifting operation that turns a relation on states into a relation on distributions of states. We show that several existing proposals for lifting relations can be reconciled to be different presentations of essentially the same lifting operation. More interestingly, this lifting operation nicely corresponds to the ...

2007
Septimiu Crivei Nanqing Ding

We consider a generalization of lifting modules relative to a class A of modules and a proper class E of short exact sequences of modules. These modules will be called E-A-lifting. We establish characterizations of modules with the property that every direct sum of copies of them is E-A-lifting. 2000 Mathematics Subject Classification: 16S90, 16D80.

Journal: :Clinical biomechanics 2002
Christian Larivière Denis Gagnon Patrick Loisel

OBJECTIVE To evaluate if chronic low back pain patients perform manual material handling tasks differently from control subjects. DESIGN Comparative study using a repeated measures design. BACKGROUND No study evaluated the lifting technique of back pain patients relative to control subjects during free style lifting and lowering tasks. Previous findings suggest that lowering would be more h...

2006
M. Martina G. Masera

The lifting scheme (LS) based wavelet transform [1] is the decorrelation stage employed in JPEG2000 [2], where the 9/7 and the 5/3 wavelet filters are used for lossy and lossless compression respectively. It is known that the 5/3 wavelet filters can be implemented with a simple multiplierless two steps LS, whereas the 9/7 wavelet filters require non rational multiplications with four lifting st...

Let $R$ be a right artinian ring or a perfect commutative‎‎ring‎. ‎Let $M$ be a noncosingular self-generator $sum$-lifting‎‎module‎. ‎Then $M$ has a direct decomposition $M=oplus_{iin I} M_i$‎,‎where each $M_i$ is noetherian quasi-projective and each‎‎endomorphism ring $End(M_i)$ is local‎.

نمودار تعداد نتایج جستجو در هر سال

با کلیک روی نمودار نتایج را به سال انتشار فیلتر کنید