2014-04-01 12:00 - Messages

Researchers Count 113 Work-Related Ladder Fatalities in 2011

A paper published in the April 24 edition of CDC's Morbidity and Mortality Weekly Report is an evaluation of injuries and deaths resulting from work-related falls from ladders. The authors analyzed data from several injury surveillance systems and calculated there were 113 fatal falls, an estimated 15,460 non-fatal injuries resulting in at least one day of lost time, and 34,000 non-fatal injuries treated in hospital emergency departments in 2011 alone.
They conclude that ladder fall injuries (LFIs) represent a substantial public health burden of preventable injuries for workers and there is a need for workplace safety research to prevent falls, including developing innovative technologies to prevent LFIs.

Source: http://ohsonline.com/articles/2014/04/25/ladder-falls.aspx

Devices for preventing percutaneous exposure injuries caused by needles in healthcare personnel

Needlestick injuries (NSIs) from devices used for blood collection or for injections expose healthcare workers to the risk of serious infections such as hepatitis or human immunodeficiency virus (HIV). Safety features such as shields or retractable needles can help prevent these injuries. We wanted to find out how effective these devices are. We searched for studies in multiple databases until January 2012 for randomised (RCTs) and non-randomised studies (NRS).

Source: http://onlinelibrary.wiley.com/doi/10.1002/14651858.CD009740.pub2/abstract

Do We Need to Challenge Respirator Filters With Biological Aerosols?

The purpose of this NIOSH Science Blog is to explain what is currently known about an important aspect of respirator filtration.  For decades, respirator researchers have been asked whether filters need to be tested with aerosols similar to those encountered in the environment (Figure 1).  Common sense suggests that viruses or bacteria are collected differently from engineered nanoparticles, silica dusts, oil mists or other types of workplace aerosols.

Source: http://blogs.cdc.gov/niosh-science-blog/2014/04/02/respirator-filter-testing/

New approach to assessing comfort of use of protective footwear with a textile liner and its impact on foot physiology

We propose a new approach to assessing comfort of use of protective footwear with a textile liner. All-rubber footwear with wool liner and cotton/polyamide socks were evaluated in a study involving 30 firefighters. The study was designed to comprehensively assess comfort of use of textiles in the footwear using certain known and new research tools at the same time, that is, measurement of the microclimate inside the footwear (temperature and humidity), weight gain of the footwear, socks, and liner (weighing method), measurement of blood flows in the lower extremities (impedance plethysmography), as well as evaluation of user comfort (questionnaire survey). The influence of the above-mentioned parameters on the comfort of use was analyzed statistically. Following a walk, the temperature in the foot regions was found to increase by 10%, while relative humidity of the air in the plantar region rose by 50%, and the textiles absorbed 28 g/1.5 h of sweat produced by the foot. Due to the unfavorable conditions inside the footwear and as a result of physical exercise, total blood flow in the lower extremities rose significantly (by 33%). The structure and type of the fiber used in the socks and liner influenced the subjective sensations of the subjects. We found very high correlations between the subjective sensations of temperature inside the footwear and the objective measurements of temperature and humidity, blood flow, and liner weight gain. This study is the first step towards a better understanding of the influence of various parameters on the comfort of use of a textile liner and socks in protective footwear.

Source: Emilia Irzmanska, Jacek Konrad Dutkiewicz, Robert Irzmanski. Textile Research Journal, May 2014 84: 728-738
http://dx.doi.org/10.1177/0040517513507362

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