Work - Volume 79, issue 2

Authors: Srinivasan, Vignesh | Ruthuvalan, Varalakshmi | Raja, Sakthi | Jayaraj, Vanitha | Sridhar, Swathi | Kothandaraman, Muthulakshmi | Suganthirababu, Prathap | Abathsagayam, Kumaresan | Vishnuram, Surya | Alagesan, Jagatheesan | Vasanthi, Rajkumar Krishnan

Article Type: Research Article

Abstract: BACKGROUND: Excessive fear, worry and behavioral disturbances define anxiety, with particular significance attributed to vagal nerve, a crucial transmitter of information to the brain regions governing anxiety. Highlighting the importance of vagal nerve, transcutaneous auricular vagal nerve stimulation (TaVNS) emerges as a tolerable and safe technique. The success of non-invasive vagal nerve stimulation in alleviating anxiety underscores the pivotal role of the vagal nerve. OBJECTIVES: The purpose of this study was to assess the effectiveness of physiotherapy interventions in mitigating anxiety among retired teachers during the COVID-19 pandemic, emphasizing the relevance of targeting the vagal nerve …for improved mental well-being. METHODS: 60 retired teachers diagnosed with anxiety were chosen through random allocation. Participants were divided into two groups: Group A (Experimental group) received transcutaneous auricular vagal nerve stimulation (TaVNS), and Group B (Control group) underwent the Jacobson relaxation technique. Intervention period spanned 4 weeks, with four sessions per week, lasting 30 minutes. The outcome measures included Generalized Anxiety Disorder-7 (GAD-7) questionnaire and salivary cortisol levels. RESULTS: Following the 4-week intervention, both groups exhibited a significant reduction in Generalized Anxiety Disorder-7 (GAD-7) scores and salivary cortisol levels (P  < 0.001). Notably, Group A demonstrated a significantly higher effectiveness rate compared to Group B. CONCLUSION: The study concludes that transcutaneous auricular vagal nerve stimulation (TaVNS) is effective in reducing anxiety among retired teachers. Transcutaneous auricular vagal nerve stimulation (TaVNS) proves to be a powerful and effective intervention in alleviating anxiety among retired teachers, emphasizing its potential significance in enhancing mental well-being. Show more

Keywords: Anxiety, vagal nerve stimulation, COVID-19 Pandemic, transcutaneous, autonomic nervous system, salivary cortisol, Generalized Anxiety Disorder-7 (GAD-7)

DOI: 10.3233/WOR-230356

Citation: Work, vol. 79, no. 2, pp. 645-652, 2024

Authors: Fan, Boya | Wang, Gang | Wu, Wei

Article Type: Research Article

Abstract: BACKGROUND: Varied noise environments, such as impulse noise and steady-state noise, may induce distinct patterns of hearing impairment among personnel exposed to prolonged noise. However, comparative studies on these effects remain limited. OBJECTIVE: This study aims to delineate the different characteristics of hearing loss in workers exposed to steady-state noise and impulse noise. METHODS: As of December 2020, 96 workers exposed to steady-state noise and 177 workers exposed to impulse noise were assessed. Hearing loss across various frequencies was measured using pure tone audiometry and distortion product otoacoustic emission (DPOAE) audiometry. RESULTS: Both groups …of workers exposed to steady-state noise and impulse noise exhibited high frequencies hearing loss. The steady-state noise group displayed significantly greater hearing loss at lower frequencies in the early stages, spanning 1– 5 years of work (P  < 0.05). Among individuals exposed to impulse noise for extended periods (over 10 years), the observed hearing loss surpassed that of the steady-state noise group, displaying a statistically significant difference (P  < 0.05). CONCLUSION: Hearing loss resulting from both steady-state noise and impulse noise predominantly occurs at high frequencies. Early exposure to steady-state noise induces more pronounced hearing loss at speech frequencies compared to impulse noise. Show more

Keywords: Steady-state noise, impulse noise, noise-induced hearing loss, pure tone audiometry, distorted product otoacoustic emissions

DOI: 10.3233/WOR-230066

Citation: Work, vol. 79, no. 2, pp. 653-660, 2024

Authors: Hopwood, Pamela | MacEachen, Ellen | Coté, Daniel | Meyer, Samantha B. | Majowicz, Shannon | Hyun, Ai-Thuy | Crouch, Meghan K. | Amoako, Joyceline | Jahangir, Yamin T. | Correal, Amelia León | Ilic, Antonela

Article Type: Research Article

Abstract: BACKGROUND: During the COVID-19 pandemic, low-wage public-facing frontline workers (FLWs), such as grocery store clerks, were required to monitor retail customers and enforce COVID-19 protocols. OBJECTIVE: This analysis aimed to examine FLWs experiences of enforcing COVID-19 pandemic measures. METHODS: Between September 2020 and March 2021, in Ontario and Quebec (Canada), we conducted in-depth interviews about customer-related work and health risks with FLWs who interacted with the public (n  = 40) and their supervisors (n  = 16). Using a lens of situational analysis, verbatim transcripts were coded according to recurring topics. RESULTS: We found that enforcing public …health measures placed already-precarious workers in difficult occupational health circumstances. Enforcement of measures created additional workplace responsibilities, stress, and exposed them to potentially negative reactions from customers. CONCLUSIONS: Interventions to better support these workers and improved methods of protection are discussed. Show more

Keywords: Workers, health disparate populations, public health practices, occupational exposure, disease transmission, infectious, control, communicable disease

DOI: 10.3233/WOR-230315

Citation: Work, vol. 79, no. 2, pp. 661-672, 2024

Authors: Jensen, Michael

Article Type: Research Article

Abstract: BACKGROUND: Occupational therapy presently has a limited presence within the workplace wellness industry and the profession’s contribution within this area of practice is not fully understood. Occupational therapy’s holistic, occupation-based, and client-centered approach has the potential to provide a valuable contribution to the field of workplace wellness. OBJECTIVE: To explore the experience of organizational employees participating in a workplace wellness program centered in the occupational therapy domain and process. METHODS: Six occupational therapy workplace wellness program participants completed in-depth semi-structured interviews one month after program completion followed by deductive thematic analysis of transcripts. RESULTS: …Three themes emerged (sustainable change across context, process matters, and therapeutic relationship supporting wellness), along with subthemes, describing the participant experience. CONCLUSIONS: The structured and individualized process of occupational therapy delivered within a workplace wellness program was appreciated by participants as a means of addressing workplace wellness and providing sustainable wellness results. Show more

Keywords: Occupational therapy, work wellness, health promotion, occupational health, prevention

DOI: 10.3233/WOR-230723

Citation: Work, vol. 79, no. 2, pp. 673-682, 2024

Authors: Pang, Siu-Chuen | Iqbal, Zaheen Ahmed | Chow, Daniel Hung-Kay

Article Type: Research Article

Abstract: BACKGROUND: Trolley bags have gained popularity among students, but there is limited research comparing them to backpack-style school bags. OBJECTIVE: This study aimed to compare how carrying a backpack versus a trolley bag affects the activity of trunk and lower limb muscles in secondary school students. METHODS: Electromyographic activity was measured in 25 students (13.4±1.1 years) as they walked on level ground and up/down stairs while carrying both types of bags. The activity of the gastrocnemius, tibialis anterior, semitendinosus, rectus femoris, lumbar erector spinae, and rectus abdominis muscles was assessed on both the dominant and non-dominant …sides. RESULTS: The study found significantly reduced muscle activation in most of the targeted muscles when walking on level ground with the trolley bag and when going up/down stairs with the backpack. CONCLUSIONS: Lifting a trolley bag depends on the slope of the walking surface and is more efficient on level ground, while carrying a backpack is more efficient when going up and down stairs. Since it is not practical to switch bags when encountering stairs in schools, a bag with a mixed model design incorporating features of both trolley and backpack may be more beneficial and practical for students to use. Students, parents, and teachers should be aware of the injury risks associated with carrying different types of bags. Show more

Keywords: Backpack, trolley, students, electromyography, muscle activity, walking surface, walking slope

DOI: 10.3233/WOR-230628

Citation: Work, vol. 79, no. 2, pp. 683-694, 2024

Authors: Dunstan, Joel | Stenner, Brad | Carrick-Ranson, Graeme | Norton, Kevin

Article Type: Research Article

Abstract: BACKGROUND: Firefighting is recognised as a physically demanding occupation involving exposure to hazardous environments and activities. An aging workforce combined with the age-related decline in physical fitness may result in increased future workers’ compensation expenditure for fire service organisations. OBJECTIVE: The objective of this research was to investigate the costs associated with musculoskeletal sprain and strain injury and the impacts of age and injury location on Workers’ Compensation claims submitted by professional urban firefighters. METHODS: Claim rates, direct costs, and days lost were extracted from a professional Fire Service organisation’s workers’ compensation claim …database for financial years between 2011 to 2018. RESULTS: The mean cost per claim increased with age, with a mean claim cost of the 60–70-year-old group over 10 times more than the 20–29-year-old group. The mean days lost per claim were also higher for claims submitted by firefighters aged over 50. CONCLUSIONS: Older firefighters miss more workdays when injured and are associated with increased claims costs, particularly those in the 60–70-year group. With an aging workforce, Fire Service organisations must implement appropriate management and prevention strategies to reduce the potential risks associated with an aging workforce. Show more

Keywords: Ageing workforce, firefighter, workers’ compensation, sprain and strain injury

DOI: 10.3233/WOR-230133

Citation: Work, vol. 79, no. 2, pp. 695-701, 2024

Authors: Dost, Ayse | Üner, Elif

Article Type: Research Article

Abstract: BACKGROUND: Retail workers comprise millions of people, but little is known about their eating behaviors and food consumption patterns. OBJECTIVE: To examine the healthy eating behaviors and food consumption frequencies of retail workers in shopping malls. METHODS: The sample of this descriptive study consisted of 385 retail employees working in ready-made garment stores of shopping malls in Istanbul (42% of those eligible). A descriptive information form, the nutrition subscale of the Health-promoting Lifestyle Profile (HPLP), and the Food Consumption Frequency Survey were used as data collection tools. RESULTS: It was …determined that more than half of the participants skipped breakfast and other meals and consumed fast food and packaged and acidic drinks five to six days a week. The mean score of the participants on the HPLP-nutrition subscale was determined to be 11.79±3.29. CONCLUSIONS: The retail workers in shopping malls were found to have insufficient healthy eating behaviors, a low frequency of healthy food consumption, and a high level of fast-food consumption. Maintaining healthy eating habits is crucial for the health of employees. It is necessary for workplaces to take steps to help their employees become aware of and practice healthy eating. Workplaces should also be encouraged to provide healthy food options for their employees. Show more

Keywords: Retail worker, healthy eating, shopping mall

DOI: 10.3233/WOR-230460

Citation: Work, vol. 79, no. 2, pp. 713-720, 2024

Authors: Sucu Çakmak, Nefise Cevriye | Çalışkan, Nurcan | Koğar, Hakan

Article Type: Research Article

Abstract: BACKGROUND: Chronic pain is the type of pain that healthcare professionals frequently encounter. Health care students’ attitudes towards pain management are not sufficient and this negatively affects their chronic pain management. When students cannot manage the chronic pain they will experience professional burnout, depersonalization, and a decrease in compassion and empathy in patient care. Therefore, the first step in improving health care students’ attitudes towards patients with chronic pain is to determine their attitudes. OBJECTIVE: This study aims to test the validity and reliability of the Scale for Healthcare Professionals’ Attitudes towards Patients with Chronic Pain (HCPAPCP Scale) …in healthcare students. METHOD: This quantitative study was conducted with 205 health care students in January-February 2022. Data were collected online with Personal Information Form and the HCPAPCP Scale. To determine the reliability of the scale, internal consistency and test-retest, and for construct validity, exploratory factor analysis and confirmatory factor analysis were performed. RESULTS: The results of the exploratory factor analysis showed that the two-factor scale consisting of 18 items, the factor structure, and the distribution of factors in items were the same as the findings of the original scale. The Cronbach’s Alpha coefficient was 0.88 for the first factor and 0.74 for the second factor. Test-retest reliability was 0.60. In confirmatory factor analysis, the model had a good and acceptable fit. CONCLUSION: We found that the HCPAPCP Scale was valid and reliable in healthcare students. Show more

Keywords: Healthcare students, chronic pain, attitude, validity and reliability study, nursing students, medical students

DOI: 10.3233/WOR-230512

Citation: Work, vol. 79, no. 2, pp. 721-731, 2024

Authors: Han, Lei | Du, Zhigang | He, Shiming

Article Type: Research Article

Abstract: BACKGROUND: The effects of traffic sign information volume (TSIV) on the visual characteristics and workload of novice and experienced drivers were investigated in this study. TSIV plays a crucial role in road traffic safety, and understanding its impact on drivers is essential for designing effective traffic sign systems. OBJECTIVE: This research aimed to compare the visual characteristics and workload of novice and experienced drivers under varying TSIV doses through simulated driving tests. The objective was to provide insights for optimizing the design of road TSIV. METHODS: Six TSIV levels were considered: S0, S1, …S2, S3, S4, and S5, representing different workload levels. Participants, including both novice and experienced drivers, were involved in simulated driving scenarios with varying TSIV levels. Eye movement data was collected using an eye tracker device. The study was conducted in China, and appropriate driving simulators and equipment were utilized. RESULTS: The findings revealed several valuable results. Experienced drivers exhibited a higher proportion of saccade behavior in the 30–90 ms time period and did not show rapid saccade behavior during the 0–30 ms period, indicating superior visual search strategies. Both novice and experienced drivers demonstrated improved visual cognitive abilities at the S3 level of TSIV, which corresponds to normal and safe driving conditions. Furthermore, a majority of both groups had saccade amplitudes in the range of 0°–4°, with experienced drivers showing a slightly higher proportion. About 82% of experienced drivers had saccade behavior within the range of 0°–2°, compared to 75% of novice drivers. CONCLUSIONS: The study concludes that the S3 level of TSIV, corresponding to 30 bits/km, is optimal for both novice and experienced drivers. This level promotes better visual performance and reduces visual workload, indicating that drivers’ information acquisition capacity and visual search strategies are maximized while keeping the workload associated with driving at a minimum. These findings have significant implications for enhancing driving safety. Show more

Keywords: TSIV, novice drivers, experienced drivers, driving safety, visual characteristics

DOI: 10.3233/WOR-230349

Citation: Work, vol. 79, no. 2, pp. 733-751, 2024

Authors: Mänttäri, Satu | Rauttola, Ari-Pekka | Halonen, Janne | Karkulehto, Jutta | Säynäjäkangas, Pihla | Oksa, Juha

Article Type: Research Article

Abstract: Background: The body of literature regarding the use of an upper limb exoskeleton during authentic working conditions is sparse. Objective: The aim of this study was to evaluate the effectiveness of an upper limb exoskeleton in reducing muscle strain during authentic industrial construction work. Methods: Fifteen male participants, comprising of roofers, scaffolders, builders, bricklayers, and graders performing overhead work participated in the study. During work without (REF) and with exoskeleton (EXO), muscle activity from 8 muscles, heart rate (HR), metabolic equivalent (MET), and upper arm elevation angles were recorded. Results: …When using the exoskeleton, a significant reduction of 20.2% in average muscle activity of 8 muscles was found. The largest effect focused on m. deltoideus , where 46.2 and 32.2% reduction occurred in medial and anterior parts of the muscle, respectively. HR and MET were unaffected. Upper arm elevation angles were similar between REF and EXO, indicating equal biomechanical loading. Conclusions: This study indicates that exoskeletons show great promise in reducing the potential for musculoskeletal strain during authentic overhead construction work. Show more

Keywords: Passive exoskeleton, overhead work, physical workload, construction work, shoulder load, usability

DOI: 10.3233/WOR-230218

Citation: Work, vol. 79, no. 2, pp. 753-763, 2024