Results 31 to 40 of about 5,156,216 (304)
OBJECTIVE: An imbalance between physical work demands and physical capacity of the worker may be a risk factor for poor health. Perceived physical exertion provides information about the individual perception of the work demands relative to the capacity ...
Lars L Andersen+3 more
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Physical exertion and triggering of myocardial infarction [PDF]
Physical exertion and triggering of myocardial infarction.
openaire +3 more sources
Objective: To investigate associations of various bio-psychosocial factors with bodily pain, physical func-tioning, and ability to work in low back pain. Design: Cross-sectional study.
Annika Taulaniemi+4 more
doaj +1 more source
The perception of physical exertion is the cognitive sensation of work demands associated with voluntary muscular actions. Measurements of exerted force are crucial for avoiding the risk of overexertion and understanding human physical capability.
Lina Ismail+6 more
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The drag exerted by weakly dissipative trapped lee waves on the atmosphere: application to Scorer's two-layer model [PDF]
While it is known that trapped lee waves propagating at low levels in a stratified atmosphere exert a drag on the mountains that generate them, the distribution of the corresponding reaction force exerted on the atmospheric mean circulation, defined by the wave momentum flux profiles, has not been established, because for inviscid trapped lee waves ...
arxiv +1 more source
BackgroundPhysical exertion and caffeine consumption are associated with acute myocardial infarction (MI). However, physical exertion and caffeine consumption have not been examined as immediate triggers of MI in low and middle-income countries ...
Vitool Lohsoonthorn+8 more
doaj +1 more source
The Lorentz Force and the Radiation Pressure of Light [PDF]
In order to make plausible the idea that light exerts a pressure on matter, some introductory physics texts consider the force exerted by an electromagnetic wave on an electron. The argument as presented is both mathematically incorrect and has several serious conceptual difficulties without obvious resolution at the classical, yet alone introductory ...
arxiv +1 more source
The impact of perceived exertion on satisfaction with life among power line workers
Introduction The power line workers have a heavy physical workload. It is essential to know the impact of this perceived exertion on their satisfaction with life to improve their mental health.
I. Sellami+7 more
doaj +1 more source
Theoretical analysis of the force on the end face of a nano-filament exerted by an outgoing light pulse [PDF]
The slight deformations observed upon transmission of a light pulse through a short length of a silica glass nano-filament offer the possibility of determining the momentum of light inside the filament. Using precise numerical calculations that take into account not only the electromagnetic momentum inside and outside the filament, but also the Lorentz
arxiv +1 more source
Influence of face masks on the subjective impairment at different physical workloads
To quantify the subjective and cognitive impairment caused by wearing face masks at work, 20 men and 20 women (median age 47 years, range 19–65) were tested under different ergometer workloads while wearing surgical mask, community mask, FFP2 respirator ...
Vera van Kampen+14 more
doaj +1 more source