2018-04-01 12:00 - Messages

Assessment of the effectiveness of modular clothing protecting against the cold based on physiological tests

At many workstations in a cold environment, protective clothing provided for the workers is characterized by inadequate thermal insulation, which results in an adverse impact of the cold environment on the worker's body. The purpose of this article is to present developed new ergonomic modular cold protective clothing, which allows for easy adaptation of the thermal insulation of clothing to a worker's individual needs. This clothing was compared in a laboratory study with the clothing having so far been used by workers in a cold environment using physiological and physical measurements, subjective ratings of the thermal state as well as a questionnaire for subjective assessment of the used clothing. These measurements and ratings confirmed that the modular cold protective clothing is more effective in the process of ensuring thermal comfort to the wearer during work in a cold environment than the clothing having so far been used.

Source: Marszalek, A., Bartkowiak, G. et Dabrowska, A. (2018). International Journal of Occupational Safety and Ergonomics.

Coefficient of friction, walking speed and cadence on slippery and dry surfaces: shoes with different groove depths

Objective. The present study aimed to determine the coefficient of friction (COF), walking speed (WS) and cadence while walking on slippery and dry surfaces using shoes with different sole groove depths to predict likelihood of fall. Background. Design of shoe sole groove is crucial to prevent slipping during walking. Methods. 22 healthy young men (mean age 24.5, body mass index 22.5) volunteered for this semi-experimental study. Six different conditions of the test (combination of three shoes and two surfaces) were defined and the condition was repeated three times. In total, 396 trials (22 subjects × 3 groove depths × 2 surfaces × 3 times) were obtained for data analysis. COF was recorded by force platform at 1000 Hz and walking parameters recorded using 3D motion analysis with six infrared cameras at 200 Hz. Results. The highest COF was obtained from the deepest groove depth (5.0 mm) on both dry and slippery surfaces. The COF on slippery surfaces was significantly lower in comparison with dry surfaces. WS and cadence were not significantly different on dry and slippery surfaces. Conclusion. The deeper groove is better to prevent slipping because the COF increases by increasing the shoe sole groove depth. WS did not change on dry and slippery surfaces.

Source: Ziaei, M., Mokhtarinia, H. R., Tabatabai Ghomshe, F. et Maghsoudipour, M. (2017). International journal of occupational safety and ergonomics.

Modified gloves: A chance for the prevention of nosocomial infections

Background: Non-sterile gloves primarily serve as a barrier protection for health care workers (HCWs). However, pathogens may often contaminate the skin of HCWs during glove removal; therefore, pathogens may be further transmitted and cause nosocomial infections.
Methods: A field study was conducted comparing contamination rates when using standard gloves or a new modified product equipped with an additional flap (doffing aid) for easier removal. Gloves were removed after bathing gloved hands in an artificial fluorescent lotion. The number of contamination spots was then visually examined using ultraviolet light.
Results: There were 317 individuals who participated in this study: 146 participants (104 nurses and 42 physicians) used standard gloves, whereas 171 participants (118 nurses and 53 physicians) used the modified product. Use of the modified gloves instead of the standard product (15.8% vs 73.3%, respectively; P < .001) and being a physician rather than a nurse (29.5% vs 47.7%, respectively; P = .003) were the only independent risk factors for reduction of contamination.
Conclusions: This study shows that the modified product could, at least in vitro, significantly reduce the rate of hand and wrist contamination during removal compared with standard gloves. By this, it may significantly improve the overall quality of patient care when used on the wards directly at the patient's site.

Source: Gleser, M., Schwab, F., Solbach, P. et Vonberg, R. P. (2018). American journal of infection control, 46(3), 266-269.

Débroussaillage - 3e édition

Cette brochure traite des travaux de débroussaillage, des techniques de travail et des situations dangereuses. On y décrit également les responsabilités de l'employeur et du travailleur, l'équipement de protection individuelle à utiliser et des règles à suivre en matière de premiers secours et de premiers soins. Pour cette 3e édition, des changements importants ont été apportés aux pages 14-15 et 16 où il est question du choix des lames.

Source: http://www.cnesst.gouv.qc.ca/Publications/200/Pages/DC_200_634.aspx

‘VIOLET’: a fluorescence-based simulation exercise for training healthcare workers in the use of personal protective equipment

Background: Healthcare workers caring for patients with high-consequence infectious diseases (HCIDs) require protection from pathogen exposure, for example by wearing personal protective equipment (PPE). Protection is acquired through the inherent safety of the PPE components, but also their safe and correct use, supported by adequate training and user familiarity. However, the evidence base for HCID PPE ensembles and any associated training is lacking, with subsequent variation between healthcare providers.
Aim: To develop an evidence-based assessment and training tool for evaluating PPE ensembles and doffing protocols, in the assessment of patients with suspected HCIDs.
Methods: VIOLET (Visualising Infection with Optimised Light for Education and Training) comprises a healthcare mannequin adapted to deliver simulated bodily fluids containing UV-fluorescent tracers. On demand and remotely operated, the mannequin projectile vomits (blue), coughs (red), has diarrhoea (yellow) and is covered in sweat (orange). Wearing PPE, healthcare staff participate in an HCID risk assessment and examination of the ‘patient’, thereby becoming exposed to these bodily fluids. Contamination of PPE is visualized and body-mapped under UV light before and after removal. Observational findings and participant feedback, around its use as a training exercise, is also recorded.
Findings: Significant contamination from different exposure events was seen, enabling evaluation of PPE and doffing procedures used. Observational data and participant feedback demonstrated its strengths and success as a training technique.
Conclusion: Simulation exercises using VIOLET provide evidence-based assessment of PPE ensembles, and are a valuable resource for training of healthcare staff in wearing and safe doffing of PPE.

Source: Poller, B., Hall, S., Bailey, C., Gregory, S., Clark, R., Roberts, P., ... et Evans, C. (2018). Journal of Hospital Infection.

Les chutes de hauteur

Des chutes à ne pas prendre de haut
Fréquentes et aux conséquences parfois dramatiques, les chutes de hauteur sont un risque majeur dans de nombreuses entreprises. Et ce quel que soit le secteur d'activité. Pourtant, de tels accidents n'ont rien d'une fatalité. Que ce soit en intervenant sur l'organisation du travail, le choix du matériel ou encore à travers la formation de différents acteurs de l'entreprise, il est tout à fait possible de les prévenir.

Source: (2018). Travail & Sécurité (792). 

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