Normal Ranges of Joint Motion

Range of motion (ROM) is a measurement of movement around a joint. Measuring ROM is helpful to assess flexibility, ability to work and fitness. 

According to Kurz, the following tables indicates the normal ranges of joint motion for various parts of the body:

Neck
Flexion: 70-90 degrees

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Asbestos and Health

Asbestos

Asbestos is a group of minerals that generally look like separable, long, thin fibers. These fibers are small and can be seen with a microscope. When these fibers are disturbed, causing the fibers to float in the air, they can be easily breathed into the lungs.

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Caffeine for Shift Workers


For nurses, drivers and others working the night shift, a cup of caffeine may do more than help them stay awake. According to a new study by Cochrane researchers, it may also help them avoid mistakes and improve their job performance, say researchers. This could mean fewer job-related accidents and injuries, although studies have yet to prove this. 

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Preventing Occupational Asthma


Definition, and Frequency

"Occupational asthma is a disease characterised by variable air flow limitation and/or airway hyper-responsiveness due to causes and conditions attributable to a particular occupational environment and not to stimuli encountered outside the workplace" (Bernstein et al 1993). Within this definition two types of occupational asthma can be distinguished: 

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