Rodrigo Hoinatski, Cintia Rodacki, Rael Mateus de Oliveira Weimer, Elto Legnani, Keith S Urbinati, Alexandre S Cabral, Rob Orr, Anderson Caetano Paulo
{"title":"Load carriage does not reduce absolute mechanical power output but reduces agility in elite military police officers.","authors":"Rodrigo Hoinatski, Cintia Rodacki, Rael Mateus de Oliveira Weimer, Elto Legnani, Keith S Urbinati, Alexandre S Cabral, Rob Orr, Anderson Caetano Paulo","doi":"10.1080/10803548.2024.2371733","DOIUrl":"https://doi.org/10.1080/10803548.2024.2371733","url":null,"abstract":"<p><p><i>Objectives</i>. The main objective of this study was to evaluate mean propulsive velocity (MPV), mean propulsive force (MPF) and mean propulsive power (MPP) in elite police officers under LOADED and UNLOADED conditions. The study also investigated the association of body composition and strength levels under the same load conditions. <i>Methods.</i> Twenty-one men from an elite unit in Brazil participated in the study, performing Smith machine half squats and an agility test. Dual energy X-ray absorptiometry measured body composition; a linear encoder measured MPV, MPF and MPP during the half squats; and a manual chronometer registered agility test performance. <i>Results.</i> The results showed that wearing and carrying occupational loads did not alter the squat exercise's MPP, MPV and MPF but reduced the performance of relative MPP and agility (<i>p</i> < 0.05). The results also showed that MPP had a higher association with force (i.e., MPF and one-repetition maximum [1RM]) than velocity (i.e., MPV and agility) under the LOADED condition (<i>p</i> < 0.05). Among the body composition variables, only lean body mass was associated with MPP under the LOADED condition (<i>p</i> < 0.05). <i>Conclusion.</i> These findings suggest that load carriage does not reduce absolute mechanical power output, but reduces the relative MPP and agility in military police officers.</p>","PeriodicalId":47704,"journal":{"name":"International Journal of Occupational Safety and Ergonomics","volume":" ","pages":"1-8"},"PeriodicalIF":1.6,"publicationDate":"2024-07-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141724756","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Claudio Muñoz-Poblete, Jaqueline Inostroza, Juan Carranza-Leiva
{"title":"Biomechanical risk factors and subacromial pain provocation in healthy manufacturing workers.","authors":"Claudio Muñoz-Poblete, Jaqueline Inostroza, Juan Carranza-Leiva","doi":"10.1080/10803548.2024.2371210","DOIUrl":"https://doi.org/10.1080/10803548.2024.2371210","url":null,"abstract":"<p><p><i>Objectives.</i> Work-related musculoskeletal disorders (MSDs) of the shoulder may manifest subclinically. By combining risk assessment and clinical instruments, it may be advisable to recognize workers who may develop more complex MSDs early. This study aimed to evaluate the relationship between biomechanical risk factors and subacromial pain provocation in healthy manufacturing workers. <i>Methods.</i> A cross-sectional descriptive observational study was carried out with workers in the furniture manufacturing industry. The occupational repetitive action (OCRA) checklist was applied to detect risk factors and three clinical tests used to detect subacromial tissue reactivity: the supraspinatus test, the painful arc test and the Hawkins-Kennedy test. <i>Results.</i> The positivity of the clinical tests is higher in the supraspinatus test, followed by the Hawkins-Kennedy test, and lowest in the painful arc test, for both the right and left shoulders. No significant associations were found with the overall OCRA checklist index or specific biomechanical factors. <i>Conclusion.</i> The biomechanical risk factors and the provocation of subacromial pain reviewed in this study were not found to be related. Other physical tests that are more sensitive and adapted to workers at risk of developing musculoskeletal shoulder disorders should be explored.</p>","PeriodicalId":47704,"journal":{"name":"International Journal of Occupational Safety and Ergonomics","volume":" ","pages":"1-7"},"PeriodicalIF":1.6,"publicationDate":"2024-07-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141724755","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Adefemi Aka, Lesiba George Mollo, Olusegun Idris Salisu, Bankole Awuzie
{"title":"Evaluating the effectiveness of strategies for mitigating fatigue among construction workers in Abuja, Nigeria: a quantitative analysis","authors":"Adefemi Aka, Lesiba George Mollo, Olusegun Idris Salisu, Bankole Awuzie","doi":"10.1080/10803548.2024.2359228","DOIUrl":"https://doi.org/10.1080/10803548.2024.2359228","url":null,"abstract":"Fatigue is one of the menaces that contribute to the rising number of construction-related accidents and fatalities in projects. Therefore, the purpose of this study is to identify several strategi...","PeriodicalId":47704,"journal":{"name":"International Journal of Occupational Safety and Ergonomics","volume":"39 1","pages":""},"PeriodicalIF":2.4,"publicationDate":"2024-06-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141529128","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Exploratory analysis using machine learning algorithms to predict pinch strength by anthropometric and socio-demographic features.","authors":"Sajjad Rostamzadeh, Alireza Abouhossein, Khurshid Alam, Shahram Vosoughi, Seyedeh Sousan Sattari","doi":"10.1080/10803548.2024.2322888","DOIUrl":"10.1080/10803548.2024.2322888","url":null,"abstract":"<p><p><i>Objectives</i>. This study examines the role of different machine learning (ML) algorithms to determine which socio-demographic factors and hand-forearm anthropometric dimensions can be used to accurately predict hand function. <i>Methods</i>. The cross-sectional study was conducted with 7119 healthy Iranian participants (3525 males and 3594 females) aged 10-89 years. Seventeen hand-forearm anthropometric dimensions were measured by JEGS digital caliper and a measuring tape. Tip-to-tip, key and three-jaw chuck pinches were measured using a calibrated pinch gauge. Subsequently, 21 features pertinent to socio-demographic factors and hand-forearm anthropometric dimensions were used for classification. Furthermore, 12 well-known classifiers were implemented and evaluated to predict pinches. <i>Results</i>. Among the 21 features considered in this study, hand length, stature, age, thumb length and index finger length were found to be the most relevant and effective components for each of the three pinch predictions. The <i>k</i>-nearest neighbor, adaptive boosting (AdaBoost) and random forest classifiers achieved the highest classification accuracy of 96.75, 86.49 and 84.66% to predict three pinches, respectively. <i>Conclusions</i>. Predicting pinch strength and determining the predictive hand-forearm anthropometric and socio-demographic characteristics using ML may pave the way to designing an enhanced tool handle and reduce common musculoskeletal disorders of the hand.</p>","PeriodicalId":47704,"journal":{"name":"International Journal of Occupational Safety and Ergonomics","volume":" ","pages":"518-531"},"PeriodicalIF":2.4,"publicationDate":"2024-06-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140327270","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Impact of job embeddedness on miners' safety performance: the role of perceived insider status and safety climate.","authors":"Chen Han, Li Jizu","doi":"10.1080/10803548.2024.2320995","DOIUrl":"10.1080/10803548.2024.2320995","url":null,"abstract":"<p><p>The present study aims to explore the mechanism for the impact of job embeddedness on safety performance, the mediating role of perceived insider status and the cross-level moderating role of safety climate among miners. The questionnaire data used for analysis in this study were collected from 310 miners in 38 coal mine production teams in China. Bootstrap analysis was performed to explore the mediating role of perceived insider status, and multilevel linear analysis was performed to explore the cross-level moderating role of safety climate. The results showed that job embeddedness was positively related to miners' safety performance; perceived insider status mediating the relationship between job embeddedness and miners' safety performance; and safety climate moderating the relationship between perceived insider status and miners' safety performance across levels.</p>","PeriodicalId":47704,"journal":{"name":"International Journal of Occupational Safety and Ergonomics","volume":" ","pages":"496-505"},"PeriodicalIF":1.6,"publicationDate":"2024-06-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"139747506","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Stefan Bauer, Maxime Berget, Massimo Borra, Damien Brissinger, Martin Brose, Steffen Görlich, Werner Halbritter, Timo Heepenstrick, Marco Janßen, Emmerich Kitz, Jacek M Kubica, Marta Łowcewicz, Michele Marro, Andrea Militello, Marcin Pelko, Andrzej Rybczyński, Marko Weber, Agnieszka Wolska
{"title":"Proposal and practicality of an alternative blue-light hazard risk assessment method for high-intensity white-light sources at workplaces.","authors":"Stefan Bauer, Maxime Berget, Massimo Borra, Damien Brissinger, Martin Brose, Steffen Görlich, Werner Halbritter, Timo Heepenstrick, Marco Janßen, Emmerich Kitz, Jacek M Kubica, Marta Łowcewicz, Michele Marro, Andrea Militello, Marcin Pelko, Andrzej Rybczyński, Marko Weber, Agnieszka Wolska","doi":"10.1080/10803548.2024.2317050","DOIUrl":"10.1080/10803548.2024.2317050","url":null,"abstract":"<p><p><i>Objectives</i>. It is prescribed to determine blue-light hazard (BLH) weighted radiances, <math><mrow><msub><mi>L</mi><mrow><mtext>B</mtext></mrow></msub></mrow></math>, for an assessment of spotlights with an angular subtense <math><mi>α</mi><mo>≥</mo><mn>11</mn><mrow><mspace></mspace></mrow><mspace></mspace><mrow><mtext>mrad</mtext></mrow></math>. The BLH weighted irradiance, <math><mrow><msub><mi>E</mi><mrow><mtext>B</mtext></mrow></msub></mrow></math>, can be used alternatively for smaller sources. Appropriate instruments are not common among persons commissioned with risk assessment (RA), and especially <math><mrow><msub><mi>L</mi><mrow><mtext>B</mtext></mrow></msub></mrow></math> measurements may be challenging. Therefore, a practical BLH RA approach is proposed that is based on illuminance, <math><mrow><msub><mi>E</mi><mrow><mtext>v</mtext></mrow></msub></mrow></math>, pre-calculated blackbody BLH efficacies of luminous radiation, <math><msubsup><mi>K</mi><mrow><mrow><mtext>B,v</mtext></mrow></mrow><mrow><mrow><mtext>Planck</mtext></mrow></mrow></msubsup></math>, and solid angle considerations. <i>Methods</i>. The practicality of this method was examined and compared against other RA approaches. <i>Results</i>. To ensure comparability of the applied instruments, measurements were performed close to a radiance standard, showing deviations within the lamp's expanded uncertainties (<math><mo><</mo><mn>4</mn><mrow><mspace></mspace></mrow><mi>%</mi></math>), whereas the deviations were <math><mo>±</mo><mn>15</mn><mi>%</mi></math> for longer distances. Focusing on a complex light-emitting diode (LED) spotlight, all detected values could be converted to <math><mrow><msub><mi>L</mi><mrow><mtext>B</mtext></mrow></msub></mrow></math> by means of the RA methods within <math><mo>±</mo><mn>20</mn><mi>%</mi></math>. Two field tests with several spotlights yielded maximum permissible exposure durations (MPED) obtained from the different RA approaches that agreed among each other within uncertainties largely below <math><mo>±</mo><mn>30</mn><mi>%</mi></math>. <i>Conclusion</i>. The general practicality of the proposed <math><mrow><msub><mi>E</mi><mrow><mtext>v</mtext></mrow></msub></mrow></math> method can be concluded for a workplace BLH RA of white-light sources.</p>","PeriodicalId":47704,"journal":{"name":"International Journal of Occupational Safety and Ergonomics","volume":" ","pages":"450-459"},"PeriodicalIF":2.4,"publicationDate":"2024-06-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"139913761","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Angeli Gawlik, Stefanie Haberstock, Johanna Beckert, Christian Zepp
{"title":"What moves truck drivers? A person-centered perspective on workplace physical activity promotion.","authors":"Angeli Gawlik, Stefanie Haberstock, Johanna Beckert, Christian Zepp","doi":"10.1080/10803548.2024.2315898","DOIUrl":"10.1080/10803548.2024.2315898","url":null,"abstract":"<p><p><i>Objectives.</i> In developing physical activity (PA) promotion measures in the workplace, individual needs of the target groups must be considered. For this reason, this study aimed to qualitatively identify the individual needs for an increase of PA in truck drivers, representing a neglected working group in terms of PA promotion. <i>Methods</i>. Semi-structured interviews were conducted (<i>N</i> = 19; mean age 50.5 years, <i>SD</i> 11.4 years; 10.5% female). The interview guide was based on the COM-B model to identify needs related to PA behavior in terms of capabilities, opportunities and motivation. The interviews were transcribed and coded by two independent investigators. <i>Results</i>. Altogether, the codes encompassed 395 statements, and the code system contained 14 codes. Three additional codes described further individual needs related to other health behaviors (nutrition, recreation) or external incentives for health interventions. <i>Conclusion</i>. The results reveal a variety of needs that are fundamental to the development of PA-promoting interventions for truck drivers. These needs appear to be closely linked, so a combination of capabilities, opportunities and/or motivation should be considered when developing holistic interventions. An example would be linking automatic motivation and psychological capabilities that encompass motivational techniques combined with information for psychoeducation of truck drivers.</p>","PeriodicalId":47704,"journal":{"name":"International Journal of Occupational Safety and Ergonomics","volume":" ","pages":"425-435"},"PeriodicalIF":1.6,"publicationDate":"2024-06-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"139703724","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"24Model-based comparative analysis of two catastrophic hazardous chemical pipeline accidents.","authors":"Jianhao Wang, Mengmeng Zhang, Huacai Xian","doi":"10.1080/10803548.2024.2325258","DOIUrl":"10.1080/10803548.2024.2325258","url":null,"abstract":"<p><p><i>Objectives.</i> This study conducted a comparative analysis of two catastrophic pipeline accidents in China in order to identify some common mistakes and lessons learned to prevent similar accidents. <i>Methods.</i> The 24Model was used in this study, which provides a universal pathway for accident analysis from the individual level to the organizational level. <i>Results.</i> There were similarities between the two cases in the aspects of the occurrence, development, emergency and causation at different levels: both were caused by leaks of pipelines and evolved into multiple explosions during emergency response; both leaks were caused by the corrosion of pipelines in the confined space of a damp or salt-spray environment; both were classified as 'responsibility accidents', and unsafe acts, such as the failure to identify hidden hazards of pipelines that were the direct cause of accidents, reflected the shortcomings of individual safety habitual behaviour in terms of knowledge, awareness, habits and psychology; weaknesses in the organizational management mainly concerned hazard identification, pipeline maintenance, emergency disposal, etc.; and there is not a good safety climate within the organization. <i>Conclusions.</i> Organizations should develop a closed-loop management system and strengthen the construction of safety culture, and the government should supervise the implementation of procedures.</p>","PeriodicalId":47704,"journal":{"name":"International Journal of Occupational Safety and Ergonomics","volume":" ","pages":"549-558"},"PeriodicalIF":2.4,"publicationDate":"2024-06-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140177109","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Investigating the trends and causes of changes in human anthropometric dimensions over the past three decades: a challenge for ergonomic design.","authors":"Niloofar Goleij, Parsa Hafezi, Omran Ahmadi","doi":"10.1080/10803548.2024.2318945","DOIUrl":"10.1080/10803548.2024.2318945","url":null,"abstract":"<p><p><i>Objectives.</i> The present study aimed to review the changes in anthropometric dimensions around the world during the last 30 years.<i>Methods.</i> The search for this study was conducted in four databases with related keywords. Papers from 1990 to 2021 were reviewed and 4139 articles were identified, with 505 related titles. Of these, 187 articles met the eligibility criteria, and their whole text was examined; 132 articles were then included for the final review.<i>Results.</i> The reviewed studies showed that a large number of anthropometric dimensions of the human body have become larger than in the past, such as height. Although the increasing trend of anthropometric dimensions in the past has been faster than in recent years, decreasing changes have also been seen in some anthropometric dimensions, such as the human jaw, face width and head width. It should be noted that the main reasons for the changes mentioned in the studies are economics and family income, social conditions, health and nutrition.<i>Conclusion.</i> Since the process of changes in anthropometric dimensions is not always the same, anthropometric data should be updated regularly, and work environments and equipment should be reviewed or redesigned according to the new anthropometric data.</p>","PeriodicalId":47704,"journal":{"name":"International Journal of Occupational Safety and Ergonomics","volume":" ","pages":"480-485"},"PeriodicalIF":2.4,"publicationDate":"2024-06-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140289246","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Transmission of fore-and-aft floor vibration to the spine and head of standing people.","authors":"Naser Nawayseh, Ashokan Arumugam, Ya Huang","doi":"10.1080/10803548.2024.2308442","DOIUrl":"10.1080/10803548.2024.2308442","url":null,"abstract":"<p><p>Sixteen standing male participants were subjected to fore-and-aft sinusoidal vibration with peak magnitude and frequency in the range 0.44-4.431 ms<sup>-2</sup> and 2-6 Hz, respectively. The fore-and-aft, lateral and vertical transmissibilities to the first dorsal vertebra (T1), eighth dorsal vertebra (T8), twelfth dorsal vertebra (T12), fourth lumbar vertebra (L4) and head were measured. Large inter-participant variability was observed in the transmissibilities at all locations. Nevertheless, peaks in the range 3-4.5 Hz were identified at all locations, implying a whole-body resonance in this frequency range. The response was found dominant in the mid-sagittal plane as the lateral transmissibility showed low values. Below 4.5 Hz, the fore-and-aft transmissibility increased with moving from caudal to cranial locations of the upper body. However, at higher frequencies, the opposite trend was observed. The results can be used for developing models that may help understand how vibration affects health and comfort.</p>","PeriodicalId":47704,"journal":{"name":"International Journal of Occupational Safety and Ergonomics","volume":" ","pages":"390-398"},"PeriodicalIF":2.4,"publicationDate":"2024-06-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"139513960","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}