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Price: EUR 250.00Authors: Medic-Pericevic, Sonja | Mikov, Ivan | Glavaski-Kraljevic, Mirjana | Spanovic, Milorad | Bozic, Andrea | Vasovic, Velibor | Mikov, Momir
Article Type: Research Article
Abstract: BACKGROUND: Professional drivers are part of the active working population, so there is a need for continuous improvement of operating efficiency and safety in driving. Reaction time is a very important driver’s trait. OBJECTIVE: The aim of this study was to examine the effects of age and driving experience on reaction times of professional drivers. METHODS: This study assesses part of driving efficiency of professional drivers by measuring simple reaction time and complex reaction time which are important to driving safety. Reaction times of 278 male professional drivers were tested using a hardware-software system for determining …the speed of response to psychomotor simple and complex audio-visual stimuli. RESULTS: Our results showed a positive correlation between ageing and slowing of reaction times. This suggests that the natural ageing process clearly slows down reaction times. CONCLUSIONS: The response times of professional drivers are more dependent on age than on driving experience. Show more
Keywords: Driving experience, simple reaction time, complex reaction time, age, workplace
DOI: 10.3233/WOR-203181
Citation: Work, vol. 66, no. 2, pp. 405-419, 2020
Authors: Petitta, Laura | Probst, Tahira M. | Ghezzi, Valerio | Barbaranelli, Claudio
Article Type: Research Article
Abstract: BACKGROUND: Economic instability produced by financial crises can increase employment-related (i.e., job insecurity) and income-related (i.e., financial stress) economic stress. While the detrimental impact of job insecurity on safety outcomes has been extensively investigated, no study has examined the concurrent role of financial stress let alone their emotion-related predictors. OBJECTIVE: The present cross-country research sought to identify the simultaneous effects of affective job insecurity and financial stress in predicting employee safety injuries and accidents under-reporting, and to examine the extent to which emotional contagion of positive/negative emotions at work contribute to the level of experienced economic stress. …METHODS: We performed multi-group measurement and structural invariance analyses. RESULTS: Data from employees in the US (N = 498) and Italy (N = 366) suggest that financial stress is the primary mediator between emotional contagion and poor safety outcomes. Moreover, greater anger-contagion predicted higher levels of financial strain and job insecurity whereas greater joy-contagion predicted reduced economic stress. CONCLUSIONS: Our findings support the relevance of considering the concurrent role of income-and employment-related stressors as predictors of safety-related outcomes. Theoretical and practical implications for safety are discussed in light of the globally increasing emotional pressure and concerns of income- and employment-related economic stress in today’s workplace, particularly given the recent pandemic spread of the coronavirus disease (COVID-19). Show more
Keywords: Economic stress, emotional contagion, workplace injuries, accident under-reporting
DOI: 10.3233/WOR-203182
Citation: Work, vol. 66, no. 2, pp. 421-435, 2020
Authors: Magnuson, Sophie | Autenrieth, Daniel A. | Stack, Theresa | Risser, Scott | Gilkey, David
Article Type: Research Article
Abstract: OBJECTIVES: To investigate the effect of wearing hard hats on the lower cervical and upper thoracic region using surface electromyography (sEMG) and possible link to work-related musculoskeletal disorder (WRMSD). METHODS: Twenty study subjects wore sEMG sensors placed on the upper trapezius muscle on their dominant side to assess muscle activity while wearing different hard hats. Study subjects were asked to don six different hard hats and assume varied neck postures. A repeated-measures design was used to analyze the results for difference and similarities in muscle activity. RESULTS: There was a small, significant effect of wearing a …hard hat on muscle loading in the upper trapezius (p = 0.038). Post-hoc analyses revealed the only statistically significant difference was between wearing no hard hat at all and wearing head protection (without accessories) in the flexed posture (p = 0.006). CONCLUSION: The results demonstrated that there was little difference in lower cervical and upper thoracic muscle activity while donning hard hat and assuming various neck postures. Wearing a sample of commonly used hard hats in this study does not appear to substantially increase muscle activity that would cause fatigue in the lower cervical and upper thoracic region among young, healthy volunteer subjects. Show more
Keywords: Head protection, musculoskeletal disorders, WRMSD, surface electromyography, neck load
DOI: 10.3233/WOR-203183
Citation: Work, vol. 66, no. 2, pp. 437-443, 2020
Authors: Tremblay, Mathieu | Albert, Wayne J. | Fischer, Steven L. | Beairsto, Eric | Johnson, Michel J.
Article Type: Research Article
Abstract: BACKGROUND: Most ambulance collisions happen in emergency driving conditions and are caused by human factors. OBJECTIVE: This study investigated the influence of human factors associated with time pressure, patient-care intervention, and health status on the physiological responses of simulated emergency driving tasks. METHODS: A cohort of seventeen experienced paramedics performed a battery of three simulated diving tasks. The driving tasks were a non-urgent and two urgent driving simulations (one to the scene and one to the hospital). The second urgent driving task was preceded by a patient-care simulation (unstable cardiac patient with cardiopulmonary resuscitation). …RESULTS: The physiological responses between the three driving tasks were not significantly different due to time pressure and patient-care intervention. It is postulated that the physiological response of experienced paramedics was influenced by the fact that they are accustomed to handling stressful situations daily. Furthermore, it was observed that paramedics with health conditions were more physiologically aroused during the urgent driving scenarios (pre and post-intervention), suggesting they might have an elevated risk of collision when they drive with urgency. Paramedics with health conditions also had higher physiological responses for the post-intervention baseline, leading to a longer recovery time period, which might represent an elevated risk of developing chronic health problems or amplifying existing ones. CONCLUSIONS: The findings of this research suggest that experienced paramedics manage the influence of time pressure and the impact of challenging patient-care well. Paramedics with health conditions represent an elevated risk of collision. Show more
Keywords: Emergency drivers, paramedics, health status, urgent driving, ambulance simulator, work physiology
DOI: 10.3233/WOR-203184
Citation: Work, vol. 66, no. 2, pp. 445-460, 2020
Authors: Tremblay, Mathieu | Albert, Wayne J. | Fischer, Steven L. | Beairsto, Eric | Johnson, Michel J.
Article Type: Research Article
Abstract: BACKGROUND: Literature reports that paramedics represent an at-risk occupation for the development of health problems. At least half of the paramedic population presents at least one risk factor associated with a negative health condition. These reports may suffer a “mono-method bias” where most reported outcomes are based on a single screening tool approach (may attenuate or inflate the prevalence). OBJECTIVE: The current study characterizes the health status of a cohort of twenty-five experienced New Brunswick (Canadian province) paramedics. METHODS: To understand possible limitations of past research, health status was characterized using four different methods: two methods …using only one health measure and two were combined methods, integrating outcomes from at least two health measures to determine the prevalence of a given health status. RESULTS: Mono-bias was observed when using the single health measure methods. The difference among the four methods highlighted that a third of the cohort seemed unaware of their health condition. This result shed additional light on paramedics’ health, where a high proportion of paramedics worked without knowledge of their health conditions. Based on a two health measures combined method, it was observed that only two-fifths of the current sample had no health conditions or could otherwise be considered as a “healthy”. CONCLUSIONS: Because the literature has focused on single screening methods, our results were difficult to compare. However, there was a consensus that paramedics represent an at-risk occupation comprised of health problems. This study was exploratory and should be the basis for further research. Show more
Keywords: Mono-method bias, musculoskeletal disorders (MSD), cardiovascular diseases (CVD), post-traumatic stress disorders (PTSD), paramedic health status
DOI: 10.3233/WOR-203185
Citation: Work, vol. 66, no. 2, pp. 461-473, 2020
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